85OAG018
85OAG018
Cite as 85 Md. Op. Att'y Gen. 18
18
ELECTIONS
REAPPORTIONMENT AND REDISTRICTING ) GENERAL ASSEMBLY
) USE OF ADJUSTED CENSUS DATA
February 7, 2000
The Honorable Thomas V. “Mike” Miller
President of the Senate
You have asked for our opinion on the constitutionality of
employing statistically adjusted census data ) as opposed to the
traditional head-count data ) in the preparation of State legislative
districts. For the reasons detailed below, it is our opinion that the
use of such data would be constitutional.
I
Background
A.
Development of Statistically Adjusted Census Data
For a variety of reasons, the decennial census of the United
States has failed to count the entire population. Following extensive
litigation over the 1980 census, the Census Bureau developed a
method to estimate the undercount in the census and to adjust the
final numbers to reflect the actual population more accurately. This
method involves a large sample survey, called the “Post-
Enumeration Survey,” that is conducted in conjunction with the
decennial census. The Bureau compares the information gathered
during this survey with information obtained in the head-count and
uses the comparison to estimate the number and characteristics of the
people omitted from the head-count. See Department of Commerce
v. United States House of Representatives, 525 U.S. 316, 119 S.Ct.
765, 769 (1999).
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The Census Act assigns responsibility for the decennial census to
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the Secretary of Commerce. 13 U.S.C. §141(a). The Census Bureau is an
agency within the Department of Commerce. 13 U.S.C. §2.
The Census Bureau has made various decisions about the
disclosure and use of the statistically adjusted figures for the 1990
and 2000 enumerations. Those decisions have been challenged in
the courts with varying results.
B.
1990 Census
The Census Bureau initially planned to use statistically
adjusted figures for the 1990 census. However, the Secretary of
Commerce overruled that decision and the Commerce Department
planned to rely on the head-count alone. Then, in response to a law
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suit, the Department agreed to have the Census Bureau perform the
necessary post-enumeration survey and to consider whether to use
the adjusted figures. See City of New York v. Department of
Commerce, 739 F. Supp. 761 (E.D.N.Y. 1990). After the survey was
done, the Secretary of Commerce determined not to use adjusted
figures for the official census numbers and also not to release the
adjusted figures, thus rendering them unavailable to those states that
desired to use them. Both of those decisions were later upheld by
the courts. Wisconsin v. City of New York, 517 U.S. 1 (1996)
(decision not to adjust 1990 census results within the discretion of
the Secretary); Senate of the State of California v. Mosbacher, 968
F.2d 974 (9th Cir. 1992) (Secretary not required to release adjusted
data).
C.
2000 Census
In preparation for the 2000 census, the Census Bureau
announced that it intended to use adjusted figures for the official
census numbers, on the grounds that the adjusted figures would be
more accurate than the raw head-count. Members of Congress and
others brought court actions to challenge this decision. The Supreme
Court held that the Census Act requires the use of the actual head-
count data in the apportionment of members of Congress among the
states and bars the use of adjusted figures for that purpose. The
Court did not reach the issue of whether other uses of adjusted
figures would be constitutional. Department of Commerce v. United
20
The opinion noted that Article III, §5 of the State Constitution
2
evinces an expectation that census data would ordinarily be used for
redistricting. 76 Opinions of the Attorney General at 212.
States House of Representatives, 525 U.S. 316, 119 S.Ct. 765
(1999).
Following that decision, the Secretary of Commerce announced
that the Census Bureau would be releasing two sets of figures
following the 2000 census: (1) the actual head-count, for use in
apportioning the members of Congress among the states, and (2)
statistically adjusted figures for other purposes, including
redistricting and the allocation of federal funds. Statement of U.S.
Secretary of Commerce William M. Daley on Plan for Census 2000
(February 24, 1999).
You ask whether there is a constitutional impediment to the
State’s using the Census Bureau’s adjusted figures for redistricting.
II
Analysis
A.
Standard for Use of Alternate Figures
A 1991 opinion of this Office concluded that use of statistically
adjusted census data for State redistricting is constitutionally
permissible so long as the data have a “high degree of accuracy” and
are used consistently throughout the State. 76 Opinions of the
Attorney General 209 (1991). That opinion concluded that neither
the State Constitution nor the federal constitution requires use of
head-count census figures for legislative redistricting, and that the
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use of other measures is permissible so long as they are sufficiently
accurate to allow the State to comply with the constitutional mandate
of one person, one vote. Noting the Secretary of Commerce’s
refusal to release the 1990 adjusted figures and his statement, with
specific reference to Maryland and Baltimore City, that those figures
were less accurate than the head-count, the opinion questioned
whether the requisite showing could be made that the adjusted
figures were superior to the head-count.
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To date, there have been no cases assessing the actual use of
statistically adjusted census data for State redistricting because no
such data have yet been available for that purpose. However, cases
arising out of the controversy over the 1990 census suggest that the
conclusion of the 1991 opinion of this Office remains valid.
Subsequent to the 1991 opinion, a number of courts addressed
the authority of states to make use of alternate data for state
redistricting. For example, in City of Detroit v. Franklin, 4 F.3d
1367, 1373-74 (6th Cir. 1993), cert. denied, 510 U.S. 1176 (1994),
the Sixth Circuit concluded that neither the Constitution nor the
Supreme Court’s decisions concerning state redistricting require the
states to use only unadjusted census figures, but simply the “best
census data available” in their attempts to create districts of
substantially equal population. Similarly, in Senate of the State of
California v. Mosbacher, 968 F.2d 974, 979 (9th Cir. 1992) the
Ninth Circuit held that “[i]f the State knows that the census data is
underrepresentative, it can, and should, utilize noncensus data in
addition to the official count in its redistricting process. It is the
State’s responsibility, not the Secretary’s, to satisfy the mandates of
the Voting Rights Act.” (citations omitted).
In two redistricting cases concerning the population base on
which redistricting must be based, the Fourth Circuit ) the circuit
that includes Maryland – has “not [foreclosed] the possibility of
basing apportionment on a measure other than total census
population, provided that such an alternative resulted in only minor
deviations from the census population count.” Daly v. Hunt, 93 F.3d
1212, 1225 (4th Cir. 1996) (state not required to use voting age
population, as opposed to total population, as apportionment base);
Ellis v. Mayor and City Council of Baltimore, 352 F.2d 123, 129
(4th Cir. 1965) (invalidating apportionment based on population of
registered voters). See also Tucker v. United States Department of
Commerce, 958 F.2d 1411, 1418 (7th Cir. 1992) (“Not only because
population shifts over a ten year period, ... but also because
population and voting population are not the same, states are not
required to use census figures for the apportionment of their
legislatures.”).
22
See Letter of Janet Norwood, Chair, Panel to Review the 2000
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Census, National Research Council, Commission on Behavioral and
Social Sciences and Education, to Kenneth Prewitt, Director, U.S. Bureau
of the Census (May 3, 1999); Brief of American Statistical Association as
Amicus Curiae in Department of Commerce v. United States House of
Representatives, 119 S.Ct. 765 (1999), incorporating Association’s Blue
Ribbon Panel Report.
Similarly, the Attorney General of Nevada has concluded that
non-census population data can constitutionally be used for state
redistricting if those data have a very high degree of accuracy. 1998
Nev. Op. Atty. Gen. No. 15, 1998 WL 309048 (May 14, 1998).
B.
Whether Statistically Adjusted Census Data Satisfy the
Standard
In our view, there is likely to be sufficient evidence to support
the use of the Census Bureau’s adjusted figures for state redistricting
purposes. Commentators have suggested that use of head-count
figures adjusted by the Census Bureau “would be the most
unobjectionable source” for alternate population data. See
Issacharoff and Lichtman, The Census Undercount and Minority
Representation: The Constitutional Obligation of the States to
Guarantee Equal Representation, 13 Rev. Litig. 1, 22-23 (1993).
There also appears to be broad support among experts in statistics
that adjusted census numbers would yield a more accurate
enumeration. For example, in recounting the history of the debate
over the use of statistically adjusted figures for the census, the
Supreme Court noted that two of the three review panels of the
National Academy of Sciences concluded that “differential
undercount cannot be reduced to acceptable levels at acceptable cost
without the use of [statistical sampling]”and that all three panels
recommended the use of statistical sampling in the 2000 census.
Department of Commerce v. United States House of Representatives,
119 S.Ct. 765 (1999). The National Research Council, Commission
on Behavioral and Social Sciences and Education, and the American
Statistical Association have endorsed the accuracy of adjusted
figures.
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Despite the decision of the Secretary of Commerce not to use
the adjusted figures in the 1990 census, there was significant support
23
See Wisconsin v. City of New York, 517 U.S. 1 (1996) (deferring
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to Secretary’s decision not to use the figures in the 1990 census); Franklin
v. Massachusetts, 505 U.S. 788 (1992)(deferring to Bureau decision on
allocation among the states of federal employees working overseas); see
also Note, The Census Adjustment Cases: The Hunt for the Wily Trout, 37
Jurimetrics 35 (Fall 1996).
for their use at that time. The Census Bureau’s Undercount Steering
Committee voted 7 to 2 in favor of adjustment, and the Census
Director recommended official use of adjusted numbers. See
Issacharoff and Lichtman, supra, at 14. Unlike the situation in 1990,
the use of adjusted figures from the 2000 census has the support of
both the Commerce Department and the Census Bureau, which will
be releasing the figures for official use. Furthermore, the Census
Bureauhas concluded that a “dress rehearsal” it conducted for the
2000 census shows the need to use statistical methods to reduce the
undercount. Statement of U.S. Secretary of Commerce William M.
Daley on Plan for Census 2000 (February 24, 1999). In the past, the
courts have accorded substantial deference to the decisions of the
Secretary and Bureau concerning the disclosure and use of adjusted
figures.
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C.
Whether the State Must Use Statistically Adjusted Figures
Some commentators have suggested that the use of the adjusted
data may be required. Note, Vote Dilution and the Census
Undercount: A State-by-State Remedy, 94 Mich. L. Rev. 1098
(1996). We disagree. In our view, the courts will not invalidate
redistricting that is based on the official census head-count.
Kirkpatrick v. Preisler, 394 U.S. 526, 528 (1969) (characterizing
official census count as “best population data available”); Latino
Political Action v. City of Boston, 568 F. Supp. 1012, 1018 (D.
Mass. 1983) (census data presumed to be accurate).
Among the reasons given by the Secretary of Commerce in
1991 for not releasing the adjusted Census figures were that the
statistical procedures used in making adjustments were “unstable”
and could produce different results and different mistakes, that
political tampering could result from using statistics to achieve
desired results, and that future censuses could be affected in a way
that would discourage full and active participation by the state and
24
See Report of Congressional Census Monitoring Board (September
5
30, 1999).
Compare Note, The Census Adjustment Cases: The Hunt for the
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Wily Trout, 37 Jurimetrics 35, 48 (1996) (“A preference for not adjusting
... recognizes that while there is only one way not to adjust census count,
there are many statistical models and assumptions that can be used to
make adjustments. In the long run, a system that favors the status quo
avoids arguments that the enumeration has been manipulated to achieve
partisan ends.”) with Note, 113 Harv. L. Rev. 349, 357 n.60 (1999)
(“From a statistician’s standpoint, the traditional headcount is itself no
more than one category of statistical sample.... There are many ways of
performing headcounts by ‘traditional’ methods, as the 1970 census’s
revolutionary use of ‘self enumeration by mail’ illustrates.... [C]ritics of
the ‘traditional headcount’ see it as involving a variety of arbitrary and
politically significant decisions, such as determinations of how to assign
states of residency to college students and military personnel.”).
localities. See Senate of the State of California, 968 F.2d at 975.
Moreover, some contend that while adjusted figures may correct an
overall undercount, they will not eliminate local undercounts or
compensate for a differential undercount of minorities. Whether the
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traditional head-count is less vulnerable to these problems is subject
to debate; nevertheless, these considerations could support the use
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of the traditional head-count data, even in the face of evidence that
the adjusted numbers compensate for the undercount.
Because there is no clear answer to the question of which of
the two sets of numbers to be issued by the Census Bureau for
official use is the more accurate, the choice of data to use for State
redistricting is an issue on which the courts are likely to defer to the
State. See Daly v. Hunt, 93 F.3d 1212, 1225 (4th Cir. 1996)
(whether to favor representational or electoral equality in
redistricting should be left to the state); see also Issacharoff and
Lichtman, The Census Undercount and Minority Representation:
The Constitutional Obligation of the States to Guarantee Equal
Representation, 13 Rev. Litig. 1, 22 (Fall 1993).
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III
Conclusion
In our view, the State may choose to use the statistically
adjusted census data published by the Census Bureau for purposes
of State redistricting, or the unadjusted head-count figures, so long
as one set of data is chosen and used consistently for all districts.
J. Joseph Curran, Jr.
Attorney General
Kathryn M. Rowe
Assistant Attorney General
Robert N. McDonald
Chief Counsel
Opinions and Advice