Opinion · Supreme Court of the United States

Wisconsin v. City of New York

Wis. v. City of N.Y., 517 U.S. 1 (1996)

Type
Opinion
Court
Supreme Court of the United States
Jurisdiction
Federal
Date
1996-03-20
Topic
intellectual-property-and-technology

explaining that the ICM methodology, which was used in the past two censuses to evaluate census quality, has “undergone substantial review and improvement” and “is generally accepted as the most reliable method to improve census results” | explaining that the ICM methodology, which was used in the past two censuses to evaluate census quality, has "undergone substantial review and improvement" and "is generally accepted as the most reliable method to improve census results" | stating that "a preference for distributive accuracy (even at the expense of some numerical accuracy) would seem to follow from the constitutional purpose of the census, viz., to determine the apportionment of the Representatives among the States" | stating that “a preference for distributive accuracy (even at the expense of some numerical accuracy) would seem to follow from the constitutional purpose of the census, viz., to determine the apportionment of the Representatives among the States” | upholding the Secretary of Commerce’s decision to overrule the Census Director regarding statistical adjustments to the decennial census | stating that the requirement that an “actual Enumeration [of each state’s population] shall be made . . . in such Manner as [Congress] shall by Law direct,” U.S. Const. art. I, § 2, cl. 3 (emphases added | stating that the require- ment that an “actual Enumeration [of each state’s population] shall be made . . . in such Manner as [Congress] shall by Law direct,” U.S. Const. art. I, § 2, cl. 3 (emphases added | stating, “The Federal Government considers census data in dispensing funds through federal programs to the States...” | evaluating whether administrative action was constitutional by asking whether it was reasonably related Congress's constitutionally-conferred authority | noting Congress’s “virtually unlimited discretion in conducting the decennial ‘actual Enumeration’” and its delegation of its “broad authority” to the Bureau | requiring “some evidence tending to show the existence” of 16 discriminatory selective prosecution before a defendant is entitled to receive 17 discovery on that defense | evaluating whether administrative action was constitutional by asking whether it was reasonably related Congress’s constitutionally-conferred authority | describing the problem of differential undercount under the traditional headcount method | describing the problem of differential undercount under the traditional headcount method | recognizing Congress’s broad constitutional authority over the census | deferring to Secretary's decision not to use the figures in the 1990 census | “Through the Census Act, Congress has delegated its broad authority over the census to the Secretary.” | Congress has delegated its “virtually unlimited discretion” in conducting the census to the Secretary | Congress has delegated its "virtually unlimited discretion" in conducting the census to the Secretary | without ICM, the 2000 census will be less accurate than the 1990 census | without ICM, the 2000 census will be less accurate than the 1990 census | “[T]he Constitution itself, by guaranteeing a minimum of one representative for each State, made it virtually impossible in interstate apportionment to achieve the [one person, one vote] standard imposed by Wesberry.” | “Through the Census Act, Congress has delegated its broad authority over the census to the Secretary.” | "Some segments of the population are 'undercounted' to a greater degree than are others, resulting in a phenomenon termed the 'differential undercount.' " | punitive damages serve a state’s “legitimate interest in punishing wrongful 18 conduct and deterring its repetition” | “[Various] errors have resulted in a net ‘undercount’ of the actual American population in every decennial census.” | “scrutiny applied to a magistrate's probable-cause determination to issue a warrant is less than that for warrantless searches” to provide incentive for use of warrant process | “[T]he mere fact

Citator

Cited by
76 opinions
WISCONSIN v. CITY OF NEW YORK,517 U.S. 1(1996)
WISCONSINv. CITY OF NEW YORK ET AL.
OKLAHOMA,v. CITY OF NEW YORK ET AL.
DEPARTMENT OF COMMERCE, ET AL., PETITIONERSv. CITY OF NEW YORK ET AL.
CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE SECOND CIRCUIT
Nos. 94-1614.
Argued January 10, 1996
Decided March 20, 1996fn*
The Constitution's Census Clause vests Congress with the responsibility to conduct an "actual Enumeration" of the American public every 10 years, with the primary purpose of providing a basis for apportioning congressional representation among the States. That responsibility has been delegated to the Secretary of Commerce, who determined that an "actual Enumeration" would best be achieved in the 1990 census by not using a postenumeration survey (PES) statistical adjustment designed to correct an undercount in the initial enumeration. In this action brought by several of the respondents and others, the District Court concluded that the Secretary's decision not to statistically adjust the census violated neither the Constitution nor federal law. In reversing and remanding, the Court of Appeals looked to a line of precedent involving judicial review of intrastate districting decisions, seeWesberryv.Sanders,376 U.S. 1, and its progeny, and held,inter alia, that a heightened standard of review was required here because the Secretary's decision impacted the fundamental right to have one's vote counted and had a disproportionate impact upon certain identifiable minority racial groups.Page 2Held:Because it was reasonable to conclude that an "actual Enumeration" could best be achieved in the 1990 census without the PES-based statistical adjustment, the Secretary's decision not to use that adjustment was well within the constitutional bounds of discretion over the conduct of the census that is provided to the Federal Government. Pp. 13-24.
(a) The Secretary's decision was not subject to heightened scrutiny. In two recent decisions,Department of Commercev.Montana,503 U.S. 442, andFranklinv.Massachusetts,505 U.S. 788, this Court rejected the application ofWesberry's "one person-one vote" standard to Congress, concluding that the Constitution vests Congress with wide discretion over apportionment decisions and the conduct of the census, and that the appropriate standard of review examines a congressional decision to determine whether it is "consistent with the constitutional language and the constitutional goal of equal representation," seeFranklin,supra, at 804. Rather than the strict scrutiny standard applied inWesberryand adopted by the Court of Appeals, the standard established inMontanaandFranklinapplies to the Secretary's decision here. The Constitution's text vests Congress with virtually unlimited discretion in conducting the "actual Enumeration," see Art. I, § 2, cl. 3 (Congress may conduct the census "in such Manner as they shall by Law direct"), and there is no basis for thinking that such discretion is more limited than that text provides. Through the Census Act,13 U.S.C. § 141(a), Congress has delegated its broad authority over the census to the Secretary. Hence, so long as the Secretary's conduct of the census is "consistent with the constitutional language and the constitutional goal of equal representation," it is within the Constitution's limits. Pp. 13-20.
(b) The Secretary's decision conformed to applicable constitutional and statutory provisions. In light of the Constitution's broad grant of authority to Congress, that decision need bear only a reasonable relationship to the accomplishment of an actual enumeration of the population, keeping in mind the census' constitutional purpose of apportioning congressional representation. The Secretary based the decision upon three determinations, each of which is well within the bounds of his constitutional discretion. First, he held that in light of the constitutional purpose, the census' distributive accuracy —i.e., getting most nearly correct the proportions of people in different areas — was more important than its numerical accuracy. A preference for distributive accuracy (even at the expense of some numerical accuracy) is not inconsistent with the constitutional need to determine the apportionment of the Representatives among the States. Second, the Secretary's determination that the unadjusted census data should be considered the most distributively accurate absent a showing to the contrary was based onPage 3his well-founded understanding of historical census practice and experience, an important consideration in this context. See,e.g., Montana, supra, at 465. Respondents misplace their reliance on statistical adjustments that were used in the 1970 and 1980 censuses, since those adjustments were of an entirely different type than the one at issue and took place on a dramatically smaller scale, and since a PES-based adjustment would have been the first time in history that the States' apportionment was based upon counts in other States. Third, respondents' contention that this Court should reviewde novothe Secretary's conclusions on this point fundamentally misapprehends the basis for deference to his determination, which arises not from the highly technical nature of his decision, but from the wide discretion bestowed by the Constitution upon Congress, and by Congress upon him. The Secretary's conclusion that the PES-based adjustment would not improve distributive accuracy, which was based on his review of extensive research and the recommendations of some of his advisers, was a reasonable choice in an area where technical experts disagree. Pp. 20-24.
34 F.3d 1114, reversed.

REHNQUIST, C.J., delivered the opinion for a unanimous Court.
Solicitor General Daysargued the cause for the federal petitioners. With him on the briefs wereAssistant AttorneyGeneral Hunger, Deputy Solicitor General Kneedler, Malcolm L.Stewart, andMark B. Stern, James E. Doyle, Attorney General of Wisconsin, argued the cause for petitioners in No. 94-1614 and No. 94-1631. With him on the brief for petitioner in No. 94-1614 wasPeter C. Anderson, Assistant Attorney General.Don G. HolladayandShelia D. Timsfiled briefs for petitioner in No. 94-1631.Robert S. Rifkindargued the cause for respondents in all cases. With him on the brief werePaul A. Crotty, Lorna B. Goodman, PeterL. Zimroth, Dennis C. Vacco, Attorney General of New York,VictoriaGraffeo, Solicitor General,Barbara Billet, Deputy Solicitor General, andLula Anderson, Assistant Attorney General,James K. Hahn, SusanS. Sher, Benna Ruth Solomon, Robert A. Ginsberg, Helen M. Gros, DennisHayes, Frank Shafroth, Dan Morales, Attorney General,RobertA. Butterworth, AttorneyPage 4General of Florida, andGeorge L. Waas, Assistant Attorney General,Deborah T. Poritz, Attorney General,Grant Woods, Attorney General,Tom Udall, Attorney General of New Mexico, andChristopher D. Coppin, Assistant Attorney General,Ada Treiger, JohnJ. Copelan, Jr., Louise Renne, Burk E. Delventhal, Stan M. Sharoff, T.Michael Mather, John P. Frank, Avis M. Russell, Nicholas Rodriguez,Robert Cohen, Michael W.L. McCrory, George Rios, Burton H. Levin, PastelVann, Assistant Corporation Counsel for the District of Columbia, andKendrick Smith.fn*
CHIEF JUSTICE REHNQUIST delivered the opinion of the Court.
In conducting the 1990 United States Census, the Secretary of Commerce decided not to use a particular statistical adjustment that had been designed to correct an undercount in the initial enumeration. The Court of Appeals for the Second Circuit held that the Secretary's decision was subject to heightened scrutiny because of its effect on the right of individual respondents to have their vote counted equally. We hold that the Secretary's decision was not subject to heightened scrutiny, and that it conformed to applicable constitutional and statutory provisions.Page 5
I
The Constitution requires an "actual Enumeration" of the population every 10 years and vests Congress with the authority to conduct that census "in such Manner as they shall by Law direct."1Art. I, § 2, cl. 3. Through the Census Act,13 U.S.C. § 1et seq., Congress has delegated to the Secretary of the Department of Commerce the responsibility to take "a decennial census of [the] population . . . in such form and content as he may determine. . . ." § 141(a). The Secretary is assisted in the performance of that responsibility by the Bureau of the Census and its head, the Director of the Census. See § 2; § 21 ("[The] Director shall perform such duties as may be imposed upon him by law, regulations, or orders of the Secretary").

The Constitution provides that the results of the census shall be used to apportion the Members of the House of Representatives among the States. See Art. I, § 2, cl. 3 ("Representatives . . . shall be apportioned among the several States . . . according to their respective Numbers. . ."); Amdt. 14, § 2 ("Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State. . ."). Because the Constitution provides that the number of Representatives apportioned to each State determines in part the allocation to each State of votes for the election of the President, the decennial census also affects the allocation of members of the electoral college. See Art. II, § 1, cl. 2 ("Each State shall appoint . . . a Number of Electors, equal to the whole Number of Senators and Representatives to which the State may be entitled in the Congress. . ."). Today, census data also have important consequences not delineated in the Constitution: The Federal Government considers census data inPage 6dispensing funds through federal programs to the States, and the States use the results in drawing intrastate political districts.

There have been 20 decennial censuses in the history of the United States. Although each was designed with the goal of accomplishing an "actual Enumeration" of the population, no census is recognized as having been wholly successful in achieving that goal.2Cf.Karcherv.Daggett,462 U.S. 725,732(1983) (recognizing that "census data are not perfect," and that "population counts for particular localities are outdated long before they are completed");Gaffneyv.Cummings,412 U.S. 735,745(1973) (census data "are inherently less than absolutely accurate"). Despite consistent efforts to improve the quality of the count, errors persist. Persons who should have been counted are not counted at all or are counted at the wrong location; persons who should not have been counted (whether because they died before or were born after the decennial census date, because they were not a resident of the country, or because they did not exist) are counted; and persons who should have been counted only once are counted twice. It is thought that these errors have resulted in a net "undercount" of the actual American population in every decennial census. In 1970, for instance, the Census Bureau concluded that the census results were 2.7% lower than the actual population.3Brief for Respondents 12.Page 7

The undercount is not thought to be spread consistently across the population: Some segments of the population are "undercounted" to a greater degree than are others, resulting in a phenomenon termed the "differential undercount." Since at least 1940, the Census Bureau has thought that the undercount affects some racial and ethnic minority groups to a greater extent than it does whites. In 1940, for example, when the undercount for the entire population was 5.4%, the undercount for blacks was estimated at 8.4%, (and the undercount for whites at 5.0%).Ibid. The problem of the differential undercount has persisted even as the census has come to provide a more numerically accurate count of the population. In the 1980 census, for example, the overall undercount was estimated at 1.2%, and the undercount of blacks was estimated at 4.9%.Ibid.

The Census Bureau has recognized the undercount and the differential undercount as significant problems, and in the past has devoted substantial effort toward achieving their reduction. Most recently, in its preparations for the 1990 census, the Bureau initiated an extensive inquiry into various means of overcoming the impact of the undercount and the differential undercount. As part of this effort, the Bureau created two task forces: the Undercount Steering Committee, responsible for planning undercount research and policy development; and the Undercount Research Staff (URS), which conducted research into various methods of improving the accuracy of the census. In addition, the Bureau consulted with state and local governments and various outside experts and organizations.

Largely as a result of these efforts, the Bureau adopted a wide variety of measures designed to reduce the rate ofPage 8error in the 1990 enumeration, including an extensive advertising campaign, a more easily completed census questionnaire, and increased use of automation, which among other things facilitated the development of accurate maps and geographic files for the 1990 census. Pet. App. 321a-322a.4The Bureau also implemented a number of improvements specifically targeted at eliminating the differential undercount; these included advertising campaigns developed by and directed at traditionally undercounted populations and expanded questionnaire assistance operations for non-English speaking residents.Ibid.

In preparing for the 1990 census, the Bureau and the task forces also looked into the possibility of using large-scale statistical adjustment to compensate for the undercount and differential undercount. Although the Bureau had previously considered that possibility (most recently in 1980), it always had decided instead to rely upon more traditional methodology and the results of the enumeration. SeeCuomov.Baldrige,674 F. Supp. 1089(SDNY 1987) (noting that Bureau rejected large-scale statistical adjustment of the 1980 census). In 1985, preliminary investigations by the URS suggested that the most promising method of statistical adjustment was the "capture-recapture" or "dual system estimation" (DSE) approach.

The particular variations of the DSE considered by the Bureau are not important for purposes of this opinion, but an example may serve to make the DSE more understandable. Imagine that one wanted to use DSE in order to determine the number of pumpkins in a large pumpkin patch. First, one would choose a particular section of the patch as the representative subset to which the "recapture" phase will be applied. Let us assume here that it is a section exactly one-tenth the size of the entire patch that is selected. Then,Page 9at the next step — the "capture" stage — one would conduct a fairly quick count of the entire patch, making sure to record both the number of pumpkins counted in the entire patch and the number of pumpkins counted in the selected section. Let us imagine that this stage results in a count of 10,000 pumpkins for the entire patch and 1,000 pumpkins for the selected section. Next, at the "recapture" stage, one would perform an exacting count of the number of pumpkins in the selected section. Let us assume that we now count 1,100 pumpkins in that section. By comparing the results of the "capture" phase and the results of the "recapture" phase for the selected section, it is possible to estimate that approximately 100 pumpkins actually in the patch were missed for every 1,000 counted at the "capture" phase. Extrapolating this data to the count for the entire patch, one would conclude that the actual number of pumpkins in the patch is 11,000.

In the context of the census, the initial enumeration of the entire population (the "capture") would be followed by the postenumeration survey (PES) (the "recapture") of certain representative geographical areas. The Bureau would then compare the results of the PES to the results of the initial enumeration for those areas targeted by the PES, in order to determine a rate of error in those areas for the initial enumeration, (i.e., the rate at which the initial enumeration undercounted people in those areas). That rate of error would be extrapolated to the entire population, and thus would be used to statistically adjust the results of the initial enumeration.

The URS thought that the PES also held some promise for correcting the differential undercount. The PES would be conducted through the use of a system called post-stratification. Thus, each person counted through the PES would be placed into one, and only one, of over 1,000 post-strata defined by five categories: geography; age; sex; statusPage 10of housing unit (rent versus own); and race (including Hispanic versus non-Hispanic origin).5By comparing the post-stratified PES data to the results of the initial enumeration, the Bureau would be able to estimate not only an overall undercount rate, but also an undercount rate for each post-strata. Hence, the statistical adjustment of the census could reflect differences in the undercount rate for each poststrata.

Through the mid-1980's, the Bureau conducted a series of field tests and statistical studies designed to measure the utility of the PES as a tool for adjusting the census. The Director of the Bureau decided to adopt a PES-based adjustment, and in June 1987, he informed his superiors in the Department of Commerce of that decision. The Secretary of Commerce disagreed with the Director's decision to adjust, however, and in October 1987, the Department of Commerce announced that the 1990 census would not be statistically adjusted.

In November 1988, several plaintiffs (including a number of the respondents in this action) brought suit in the United States District Court for the Eastern District of New York, arguing that the Secretary's decision against statistical adjustment of the 1990 census was unconstitutional and contrary to federal law. The parties entered into an interim stipulation providing,interalia, that the Secretary would reconsider the possibility of a statistical adjustment.

In July 1991, the Secretary issued his decision not to use the PES to adjust the 1990 census. Pet. App. 135a-415a. The Secretary began by noting that large-scale statisticalPage 11adjustment of the census through the PES would "abandon a two hundred year tradition of how we actually count people."Id., at 138a. Before taking a "step of that magnitude," he held, it was necessary to be "certain that it would make the census better and the distribution of the population more accurate."Ibid. Emphasizing that the primary purpose of the census was to apportion political representation among the States, the Secretary concluded that "the primary criterion for accuracy should be distributive accuracy — that is, getting most nearly correct the proportions of people in different areas."Id., at 146a-147a.

After reviewing the recommendations of his advisers and the voluminous statistical research that had been compiled, the Secretary concluded that although numerical accuracy (at the national level) might be improved through statistical adjustment, he could not be confident that the distributive accuracy of the census — particularly at the state and local level — would be improved by a PES-based adjustment.6Id., at 140a-141a, 200a-201a. In particular, the Secretary noted, the adjusted figures became increasingly unreliable as one focused upon smaller and smaller political subdivisions.Id., at 142a.

The Secretary stated that his decision not to adjust was buttressed by a concern that adjustment of the 1990 census might present significant problems in the future.Id., at 143a. Because small changes in adjustment methodology would have a large impact upon apportionment — an impact that could be determined before a particular methodology was chosen — the Secretary found that statistical adjustmentPage 12of the 1990 census might open the door to political tampering in the future. The Secretary also noted that statistical adjustment might diminish the incentive for state and local political leaders to assist in the conduct of the initial enumeration. Seeid., at 143a-144a. In conclusion, the Secretary stated that the Bureau would continue its research into the possibility of statistical adjustment of future censuses, and would maintain its efforts to improve the accuracy and inclusiveness of the initial enumeration.Id., at 145a.

The plaintiffs returned to court. The District Court concluded that the Secretary's decision violated neither the Constitution nor federal law. SeeNew Yorkv.United States Dept. of Commerce,822 F. Supp. 906(EDNY 1993).

Respondents appealed, arguing that the District Court had adopted the wrong standard of review for their constitutional claim,7and the Court of Appeals for the Second Circuit reversed by a divided vote.34 F.3d 1114(1994); Pet. App. 1a-40a. The majority looked to a line of precedent involving judicial review of intrastate districting decisions, see,e.g.,Karcherv.Daggett,462 U.S. 725(1983);Wesberryv.Sanders,376 U.S. 1(1964), and found that a heightened standard of review was required here both because the Secretary's decision impacted a fundamental right, viz., the right to have one's vote counted, and because the decision had a disproportionate impact upon certain identifiable minority racial groups.34 F.3d at 1128. The court then held that the plaintiffs had shown that the Secretary had failed to make a good-faith effort to achieve equal districts as nearly as possible,id., at 1130, and therefore that the defendants must bear the burden of proving that population deviations were necessary to achieve some legitimate state goal,id., at 1131. The court remanded for an inquiry into whether the Secretary could show that the decision not toPage 13adjust was essential for the achievement of a legitimate governmental objective.Ibid.

The dissenting judge stated that he would have affirmed based upon the decision of the District Court. Seeibid. He also noted that the majority's decision created a conflict with two other decisions of the Courts of Appeals. SeeDetroitv.Franklin,4 F.3d 1367(CA6 1993), andTuckerv.United States Dept. of Commerce,958 F.2d 1411(CA7 1992).

Wisconsin, Oklahoma, and the United States each filed a petition for certiorari. We granted those petitions, and consolidated them for argument.515 U.S. 1190(1995). We now reverse.
II
In recent years, we have twice considered constitutional challenges to the conduct of the census. InDepartment of Commercev.Montana,503 U.S. 442(1992), the State of Montana, several state officials, and Montana's Members of Congress brought suit against the Federal Government, challenging as unconstitutional the method used to determine the number of Representatives to which each State is entitled. A majority of a three-judge District Court looked to the principle of equal representation for equal numbers of people that was applied to intrastate districting inWesberryv.Sanders,supra, and held it applicable to congressional apportionment of seats among the States. Noting a significant variance between the population of Montana's single district and the population of the "ideal district," the court found that Congress' chosen method of apportionment violated the principle ofWesberry, and therefore voided the federal statute providing the method of apportionment.

In a unanimous decision, this Court reversed. We began by revisitingWesberry, a case in which the Court held unconstitutional wide disparities in the population of congressional districts drawn by the State of Georgia.Montana,supra, at 459-460. We recognized that the principle ofWesberry— "`equal representation for equal numbers of people'" — hadPage 14evolved though a line of cases into a strictly enforced requirement that a State "`make a good-faith effort to achieve precise mathematical equality'" among the populations of congressional districts. SeeMontana,supraat 460, quotingKirkpatrickv.Preisler,394 U.S. 526,530-531(1969) (disparities between congressional districts in Missouri held unconstitutional); see alsoKarcherv.Daggett,supra(1% disparity between population of New Jersey districts held unconstitutional). Returning to Montana's challenge to Congress' apportionment decision, we noted that theWesberryline of cases all involved intrastate disparities in the population of voting districts that had resulted from a State's redistricting decisions, whereas Montana had challenged interstate disparities resulting from the actions of Congress.Montana,supra, at 460.

We found this difference to be significant beyond the simple fact that Congress was due more deference than the States in this area.Wesberryrequired a State to make "a good-faith effort to achieve precise mathematical equality" in the size of voting districts.Kirkpatrick,supra, at 530-531. While this standard could be applied easily to intrastate districting because there was no "theoretical incompatibility entailed in minimizing both the absolute and the relative differences" in the sizes of particular voting districts, we observed that it was not so easily applied to interstate districting decisions where there was a direct tradeoff between absolute and relative differences in size.Montana,supra, at 461-462. Finding that Montana demanded that we choose between several measures of inequality in order to hold theWesberrystandard applicable to congressional apportionment decisions, we concluded that "[n]either mathematical analysis nor constitutional interpretation provide[d] a conclusive answer" upon which to base that choice.Montana,supra, at 463.

We further found that the Constitution itself, by guaranteeing a minimum of one representative for each State, made it virtually impossible in interstate apportionment to achievePage 15the standard imposed byWesberry.Montana,supra, at 463. In conclusion, we recognized the historical pedigree of the challenged method of apportionment, and reemphasized that Congress' "good-faith choice of a method of apportionment of Representatives among the several States `according to their respective Numbers' commands far more deference than a state districting decision that is capable of being reviewed under a relatively rigid mathematical standard."Montana,supra, at 464.

InFranklinv.Massachusetts,505 U.S. 788(1992), we reiterated our conclusion that the Constitution vests Congress with wide discretion over apportionment decisions and the conduct of the census. InFranklin, the State of Massachusetts and two of its registered voters sued the Federal Government, arguing that the method used by the Secretary to count federal employees serving overseas was (among other things) unconstitutional. Restating the standard of review established byMontana, we examined the Secretary's decision in order to determine whether it was "consistent with the constitutional language and the constitutional goal of equal representation." SeeFranklin,supra, at 804;Montana,supra, at 459. After a review of the historical practice in the area, we found that the plaintiffs had not met their burden of proving that a decision contrary to that made by the Secretary would "make representation . . . more equal."Franklin,505 U.S., at 806. Concluding that the Secretary's decision reflected a "judgment, consonant with, though not dictated by, the text and history of the Constitution . . . ," we held the Secretary's decision to be well within the constitutional limits on his discretion.Ibid.

In its decision in this action, the Court of Appeals found that a standard more strict than that established inMontanaandFranklinshould apply to the Secretary's decision not to statistically adjust the census. The court looked to equal protection principles distilled from the same line of state redistricting cases relied upon by the plaintiffs inMontana,Page 16and found that both the nature of the right asserted by respondents — the right to have one's vote counted equally — and the nature of the affected classes — "certain identifiable minority groups" — required that the Secretary's decision be given heightened scrutiny.34 F.3d, at 1128. The court drew from the District Court's decision "implicit" findings: that the census did not achieve equality of voting power as nearly as practicable; "that for most purposes and for most of the population [the PES-based] adjustment would result in a more accurate count than the original census; and that the adjustment would lessen the disproportionate undercounting of minorities."Id., at 1129.

The court recognized two significant differences between the intrastate districting cases and the instant action: first, that this case involves the federal rather than a state government; and second, that constitutional requirements make it impossible to achieve precise equality in voting power nationwide.Ibid. But it found these differences nondeterminative, deciding that no deference was owed to the Executive Branch on a question of law, and that the "impossibility of achieving precise mathematical equality is no excuse for [the Federal Government] not making [the] mandated good-faith effort."Ibid. The court found that the respondents here had established a prima facie violation of theWesberrystandard both by showing that the PES-based adjustment would increase numerical accuracy, and by virtue of the fact that "the differential undercount in the 1990 enumeration was plainly foreseeable and foreseen."34 F.3d, at 1130-1131. The court held that the Secretary's decision would have to be vacated as unconstitutional unless on remand he could show that the decision not to adjust "(a) furthers a governmental objective that is legitimate, and (b) is essential for the achievement of that objective."Id., at 1131.

We think that the Court of Appeals erred in holding the "one person-one vote" standard ofWesberryand its progeny applicable to the action at hand. For several reasons, thePage 17"good-faith effort to achieve population equality" required of a State conducting intrastate redistricting does not translate into a requirement that the Federal Government conduct a census that is as accurate as possible. First, we think that the Court of Appeals understated the significance of the two differences that it recognized between state redistricting cases and the instant action. The court failed to recognize that the Secretary's decision was made pursuant to Congress' direct delegation of its broad authority over the census. See Art. I, § 2, cl. 3 (Congress may conduct the census "in such Manner as they shall by Law direct") The court also undervalued the significance of the fact that the Constitution makes it impossible to achieve population equality among interstate districts. As we have noted before, the Constitution provides that "[t]he number of Representatives shall not exceed one for every 30,000 persons; each State shall have at least one Representative; and district boundaries may not cross state lines."Montana,503 U.S., at 447-448.

While a court can easily determine whether a State has made the requisite "good-faith effort" toward population equality through the application of a simple mathematical formula, we see no way in which a court can apply theWesberrystandard to the Federal Government's decisions regarding the conduct of the census. The Court of Appeals found thatWesberryrequired the Secretary to conduct a census that would "achieve voting-power equality," which it understood to mean a census that was as accurate as possible.34 F.3d, at 1129. But in so doing, the court implicitly found that the Constitution prohibited the Secretary from preferring distributive accuracy to numerical accuracy, and that numerical accuracy — which the court found to be improved by a PES-based adjustment — was constitutionally preferable to distributive accuracy. Seeid., at 1131 ("The Secretary did not make the required effort to achieve numerical accuracy as nearly as practicable, . . . the burden thus shifted toPage 18the Secretary to justify his decision not to adjust. . . ") As inMontana, where we could see no constitutional basis upon which to choose between absolute equality and relative equality, so here can we see no ground for preferring numerical accuracy to distributive accuracy, or for preferring gross accuracy to some particular measure of accuracy. The Constitution itself provides no real instruction on this point, and extrapolation from our intrastate districting cases is equally unhelpful. Quite simply, "[t]he polestar of equal representation does not provide sufficient guidance to allow us to discern a single constitutionally permissible course."Montana,supra, at 463.

InMontana, we held that Congress' "apparently good-faith choice of a method of apportionment of Representatives among the several States `according to their respective Numbers'" was not subject to strict scrutiny underWesberry.Montana,supra, at 464. With that conclusion in mind, it is difficult to see why or howWesberrywould apply to the Federal Government's conduct of the census — a context even further removed from intrastate districting than is congressional apportionment. Congress' conduct of the census, even more than its decision concerning apportionment, "commands far more deference than a state districting decision that is capable of being reviewed under a relatively rigid mathematical standard."8Montana,supra, at 464.

Rather than the standard adopted by the Court of Appeals, we think that it is the standard established by thisPage 19Court inMontanaandFranklinthat applies to the Secretary's decision not to adjust. The text of the Constitution vests Congress with virtually unlimited discretion in conducting the decennial "actual Enumeration,"9see Art. I, § 2, cl. 3, and notwithstanding the plethora of lawsuits that inevitably accompany each decennial census,10there is no basis for thinking that Congress' discretion is more limited than the text of the Constitution provides. See alsoBaldrigev.Shapiro,455 U.S. 345,361(1982) (noting broad scope of Congress' discretion over census). Through the Census Act, Congress has delegated its broad authority over the census to the Secretary.11See13 U.S.C. § 141(a) (Secretary shall take "a decennial census of [the] population . . . in such form and content as he may determine. . . ") Hence, so long as the Secretary's conduct of the census is "consistent with thePage 20constitutional language and the constitutional goal of equal representation,"Franklin,505 U.S., at 804, it is within the limits of the Constitution. In light of the Constitution's broad grant of authority to Congress, the Secretary's decision not to adjust need bear only a reasonable relationship to the accomplishment of an actual enumeration of the population, keeping in mind the constitutional purpose of the census.

In 1990, the Census Bureau made an extraordinary effort to conduct an accurate enumeration, and was successful in counting 98.4% of the population. See58 Fed. Reg. 70(1993); Brief for Federal Parties 28. The Secretary then had to consider whether to adjust the census using statistical data derived from the PES. He based his decision not to adjust the census upon three determinations. First, he held that in light of the constitutional purpose of the census, its distributive accuracy was more important than its numerical accuracy. Second, he determined that the unadjusted census data would be considered the most distributively accurate absent a showing to the contrary. And finally, after reviewing the results of the PES in light of extensive research and the recommendations of his advisers, the Secretary found that the PES-based adjustment would not improve distributive accuracy. Each of these three determinations is well within the bounds of the Secretary's constitutional discretion.

As we have already seen,supra, at 18, the Secretary's decision to focus on distributive accuracy is not inconsistent with the Constitution. Indeed, a preference for distributive accuracy (even at the expense of some numerical accuracy) would seem to follow from the constitutional purpose of the census, viz., to determine the apportionment of the Representatives among the States. Respondents do not dispute this point. See Brief for Respondents 54 ("Distributive accuracy is an appropriate criterion for judging census accuracy because it calls attention to a concern with the usesPage 21to which census data are put"). Rather, they challenge the, Secretary's first determination by arguing that he improperly "regarded evidence of superior numeric accuracy as `not relevant' to the determination of distributive accuracy."Id., at 39 (quoting Pet. App. 201a); see also Brief for Respondents 51-54. In support of this argument, respondents note that an enumeration that results in increased numerical accuracy will also result in increased distributive accuracy.

We think that respondents rest too much upon the statement by the Secretary to which they refer. When quoted in full, the statement reads: "[W]hile the preponderance of the evidence leads me to believe that the total population at the national level falls between the census counts and the adjusted figures, that conclusion is not relevant to the determination of distributive accuracy." Pet. App. 201a. In his decision, the Secretary found numerical accuracy (in addition to distributive accuracy) to be relevant to his decision whether to adjust. Seeid., at 157a. Even if the Secretary had chosen to subordinate numerical accuracy, we are not sure why the fact that distributive and numerical accuracy correlate closely in an improvedenumerationwould require the Secretary to conclude that they correlate also for a PES-basedstatistical adjustment.

Turning to the Secretary's second determination, we previously have noted, and respondents do not dispute, the importance of historical practice in this area. SeeFranklin,supra, at 803-806 (noting importance of historical experience in conducting the census); cf.Montana,503 U.S., at 465("To the extent that the potentially divisive and complex issues associated with apportionment can be narrowed by the adoption of both procedural and substantive rules that are consistently applied year after year, the public is well served. . . ") Nevertheless, respondents challenge the Secretary's second determination by arguing that his understanding of historical practice is flawed. According to respondents, the Secretary assumed that the census traditionally was conductedPage 22via a simple "headcount," thereby ignoring the fact that statistical adjustment had been used in both the 1970 and 1980 censuses. See Brief for Respondents 4-5.

We need not tarry long with this argument. The Secretary reasonably recognized that a PES-based statistical adjustment would be a significant change from the traditional method of conducting the census. The statistical adjustments in 1970 and 1980 to which respondents refer were of an entirely different type than the adjustment considered here, and they took place on a dramatically smaller scale. SeeCuomov.Baldrige,674 F. Supp., at 1107(rejecting argument that Secretary had to conduct PES-like statistical adjustment of 1980 census and finding that "none of [the] adjustments in 1970 were even remotely similar to the types of wholesale adjustments presently suggested. . . ") Moreover, the PES-based adjustment would have been the first time in history that the States' apportionment would have been based upon counts in other States. See Pet. App. 251a-252a. Here, the Secretary's understanding of the traditional method of conducting the census was well founded, as was his establishment of a rebuttable presumption that the traditional method was the most accurate.

The Secretary ultimately determined that the available evidence "tends to support the superior distributive accuracy of the actual enumeration,"id., at 185a, and it is this determination at which respondents direct the brunt of their attack. Respondents contend that the Secretary's review of the evidence is due no deference from this Court. They argue that the Secretary's decision is not the sort of "highly technical" administrative decision that normally commands judicial deference, and that regardless of its technical complexity, the Secretary's review of the evidence presents a constitutional issue that deserves no deference. Respondents contend that the Secretary's review of the evidence is of dubious validity because the Secretary is admittedly "not a statistician,"id., at 139a, and because his conclusion is atPage 23odds with that of the Director of the Census. According to respondents, we should carefully comb the Secretary's decision in order to review his conclusionsde novo.

Respondents' argument fundamentally misapprehends the basis for our deference to the Secretary's determination that the adjusted census results do not provide a more distributively accurate count of the population. Our deference arises not from the highly technical nature of his decision, but rather from the wide discretion bestowed by the Constitution upon Congress, and by Congress upon the Secretary. Regardless of the Secretary's statistical expertise, it is he to whom Congress has delegated its constitutional authority over the census. For that same reason, the mere fact that the Secretary's decision overruled the views of some of his subordinates is by itself of no moment in any judicial review of his decision.

Turning finally to review the Secretary's conclusion that the PES-based adjustment would not improve distributive accuracy, we need note only that the Secretary's conclusion is supported by the reasoning of some of his advisers, and was therefore a reasonable choice in an area where technical experts disagree. Cf.Tuckerv.United States Dept. of Commerce,958 F.2d, at 1418(Plaintiffs seeking PES-based statistical adjustment "are asking [courts] to take sides in a dispute among statisticians, demographers, and census officials concerning the desirability of making a statistical adjustment to the census headcount"). The Under Secretary of Commerce for Economic Affairs and the Administrator of the Economics and Statistics Administration both voted against adjustment. Pet. App. 59a, 140a. Moreover, even those who recommended in favor of adjustment recognized that their conclusion was not compelled by the evidence: The Director of the Census Bureau, upon whose recommendation respondents heavily rely, stated in her report to the Secretary that "[a]djustment is an issue about which reasonable men and women and the best statisticians and demographersPage 24can disagree." App. 73. And one of the principal statisticians at the Bureau, Dr. Robert E. Fay, "`told the Secretary that . . . reasonable statisticians could differ'" on the question of adjustment. Pet. App. 91a. Therefore, and because we find the Secretary's two prior determinations as well to be entirely reasonable, we conclude that his decision not to adjust the 1990 census was "consonant with . . . the text and history of the Constitution."Franklin,505 U.S., at 806.
III
The Constitution confers upon Congress the responsibility to conduct an "actual Enumeration" of the American public every 10 years, with the primary purpose of providing a basis for apportioning political representation among the States. Here, the Secretary of Commerce, to whom Congress has delegated its constitutional authority over the census, determined that in light of the constitutional purpose of the census, an "actual Enumeration" would best be achieved without the PES-based statistical adjustment of the results of the initial enumeration. We find that conclusion entirely reasonable. Therefore we hold that the Secretary's decision was well within the constitutional bounds of discretion over the conduct of the census provided to the Federal Government. The judgment of the Court of Appeals isReversed.Page 25
  1. Together with No. 94-1631,Oklahomav.City of New York et al.,and No. 94-1985,Department of Commerce et al. v.City of New York et al.,also on certiorari to the same court. ↩
  2. Page 4 Briefs ofamici curiaeurging reversal were filed for the Commonwealth of Pennsylvania byThomas W. Corbett, Jr., Attorney General, andJohn G.Knorr III, Chief Deputy Attorney General; and for United States Senator Herb Kohl et al. byBrady C. Williamson.

    Briefs ofamici curiaeurging affirmance were filed for the City of Detroit byLinda D. Fegins;and for the Lawyers' Committee for Civil Rights Under Law et al. byJonathan L. Greenblatt, PaulC. Saunders, Herbert J. Hansell, Norman Redlich, Barbara R. Arnwine,Thomas J. Henderson, Christopher A. Hansen, Steven R. Shapiro,Samuel Rabinove, Elaine R. Jones, Theodore M. Shaw, Charles StephenRalston, andArthur N. Eisenberg. ↩
  3. Page 5 The Census Clause provides in full: "The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct." Art. I, § 2, cl. 3. ↩
  4. Page 6 Indeed, even the first census did not escape criticism. Thomas Jefferson, who oversaw the conduct of that census in 1790 as Secretary of State, was confident that it had significantly undercounted the young Nation's population. See C. Wright, History and Growth of the United States Census 16-17 (1900). ↩
  5. Page 6 One might wonder how the Census Bureau is able to determine whether there is an undercount and its size. Specifically: Against what standard are the census results measured? After all, if theactualpopulation of the United States is known, then the conduct of the census would seem wholly redundant.

    For the most part, we are told, the size of the error in a particular census is determined by comparing the census results not with some definitePage 7and established measure of the population, but rather with estimates of the population developed from demographic data. See App. to Pet. for Cert. in V. 94-1614, pp. 158a-168a, 366a-369a (hereinafter Pet. App.) A similar procedure traditionally has been used to determine the size and make up of the differential undercount, seeinfra, 9-10. ↩
  6. Page 8 All references to Pet. App. are to the appendix to the petition for certiorari in No. 94-1614 unless otherwise noted. ↩
  7. Page 10 Examples of poststrata actually used include: female blacks between the ages of 20 and 29 who owned a home in either Detroit or Chicago; nonblack non-Hispanic females, aged 45-64, living in owned or rented housing in a nonmetropolitan area with a population of 10,000 or more in Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, or Wyoming; and male Asians or Pacific Islanders, aged 65 or above, renting a home in either the Los Angeles-Long Beach area or another central city in a metropolitan area in Alaska, California, Hawaii, Oregon, or Washington. ↩
  8. Page 11 The distinction between distributive and numerical accuracy becomes clear with an example. Imagine that the Bureau somehow were able to determine definitely that the census had failed to count exactly 10 million people nationwide. If those 10 million "persons" were added to the Nation's total population, and all 10 million were allocated to one particular State, then the numerical accuracy of the census would be improved, but the distributive accuracy would almost certainly be significantly impaired. ↩
  9. Page 12 Respondents did not appeal the District Court's treatment of their statutory claims. ↩
  10. Page 18 Nor do we think that strict scrutiny applies here for some other reason. Strict scrutiny of a classification affecting a protected class is properly invoked only where a plaintiff can show intentional discrimination by the Government.Washingtonv.Davis,426 U.S. 229,239-245(1976). Respondents here have not argued that the Secretary's decision not to adjust was based upon an intent to discriminate on the basis of race. Indeed, in light of the Government's extraordinary efforts to include traditionally undercounted minorities in the 1990 census, see Pet. App. 78a, 321a-322a, we think that respondents here would have had a tough row to hoe had they set out to prove intentional discrimination by the Secretary. ↩
  11. Page 19 We do not decide whether the Constitution might prohibit Congress from conducting the type of statistical adjustment considered here. See Brief for Petitioner in No. 94-1614, pp. 40-42. ↩
  12. Page 19 See,e. g.,Franklinv.Massachusetts,505 U.S. 788,790(1992) ("As one season follows another, the decennial census has again generated a number of reapportionment controversies");National Law Center onHomelessness and Povertyv.Brown, appeal pending, No. 94-5312 (CADC) (argued Oct. 6, 1995) (challenging Census Bureau's procedures for finding and counting homeless persons);Careyv.Klutznick,637 F.2d 834(CA2 1980) (seeking order directing Census Bureau to adopt certain processes for counting persons);Borough of Bethel Parkv.Stans,449 F.2d 575(CA3 1971). ↩
  13. Page 19 We do not here decide the precise bounds of the authority delegated to the Secretary through the Census Act. First, because no party here has suggested that Congress has, in its delegation of authority over the conduct of the census to the Secretary, constrained the Secretary's authority to decide not to adjust the census, we assume here that the Secretary's discretion not to adjust the census is commensurate with that of Congress. See Brief for Petitioner in No. 94-1614, p. 24, n. 19 (stating that "Congress did not enact any . . . legislation . . . to compel . . . statistical adjustment" of the 1990 Census). Second, although Oklahoma argues that Congress has constrained the Secretary's discretion to statistically adjust the decennial census, see13 U.S.C. § 195, we need not decide that question in order to resolve this action. ↩