Reynolds v. Sims/Opinion of the Court VI

By holding that, as a federal constitutional requisite, both houses of a state legislature must be apportioned on a population basis, we mean that the Equal Protection Clause requires that a State make an honest and good faith effort to construct districts, in both houses of its legislature, as nearly of equal population as is practicable. We realize that it is a practical impossibility to arrange legislative districts so that each one has an identical number of residents, or citizens, or voters. Mathematical exactness or precision is hardly a workable constitutional requirement. [n57]

In Wesberry v. Sanders, supra, the Court stated that congressional representation must be based on population as nearly as is practicable. In implementing the basic constitutional principle of representative government as enunciated by the Court in Wesberry — equality of population [p578] among districts — some distinctions may well be made between congressional and state legislative representation. Since, almost invariably, there is a significantly larger number of seats in state legislative bodies to be distributed within a State than congressional seats, it may be feasible to use political subdivision lines to a greater extent in establishing state legislative districts than in congressional districting while still affording adequate representation to all parts of the State. To do so would be constitutionally valid so long as the resulting apportionment was one based substantially on population and the equal population principle was not diluted in any significant way. Somewhat more flexibility may therefore be constitutionally permissible with respect to state legislative apportionment than in congressional districting. Lower courts can and assuredly will work out more concrete and specific standards for evaluating state legislative apportionment schemes in the context of actual litigation. For the present, we deem it expedient not to attempt to spell out any precise constitutional tests. What is marginally permissible in one State may be unsatisfactory in another, depending on the particular circumstances of the case. Developing a body of doctrine on a case-by-case basis appears to us to provide the most satisfactory means of arriving at detailed constitutional requirements in the area of state legislative apportionment. ''Cf. Slaughter-House Cases'', 16 Wall. 36, 78-79. Thus, we proceed to state here only a few rather general considerations which appear to us to be relevant.

A State may legitimately desire to maintain the integrity of various political subdivisions, insofar as possible, and provide for compact districts of contiguous territory in designing a legislative apportionment scheme. Valid considerations may underlie such aims. Indiscriminate districting, without any regard for political subdivision or [p579] natural or historical boundary lines, may be little more than an open invitation to partisan gerrymandering. Single-member districts may be the rule in one State, while another State might desire to achieve some flexibility by creating multi-member [n58] or floterial districts. [n59] Whatever the means of accomplishment, the overriding objective must be substantial equality of population among the various districts, so that the vote of any citizen is approximately equal in weight to that of any other citizen in the State.

History indicates, however, that many States have deviated, to a greater or lesser degree, from the equal population principle in the apportionment of seats in at least one house of their legislatures. [n60] So long as the divergences from a strict population standard are based on legitimate considerations incident to the effectuation of a rational state policy, some deviations from the equal population principle are constitutionally permissible with respect to the apportionment of seats in either or both of the two houses of a bicameral state legislature. But neither history alone, [n61] nor economic or other sorts of [p580] group interests, are permissible factors in attempting to justify disparities from population-based representation. Citizens, not history or economic interests, cast votes. Considerations of area alone provide an insufficient justification for deviations from the equal population principle. Again, people, not land or trees or pastures, vote. Modern developments and improvements in transportation and communications make rather hollow, in the mid-1960's, most claims that deviations from population-based representation can validly be based solely on geographical considerations. Arguments for allowing such deviations in order to insure effective representation for sparsely settled areas and to prevent legislative districts from becoming so large that the availability of access of citizens to their representatives is impaired are today, for the most part, unconvincing.

A consideration that appears to be of more substance in justifying some deviations from population-based representation in state legislatures is that of insuring some voice to political subdivisions, as political subdivisions. Several factors make more than insubstantial claims that a State can rationally consider according political subdivisions some independent representation in at least one body of the state legislature, as long as the basic standard of equality of population among districts is maintained. Local governmental entities are frequently charged with various responsibilities incident to the operation of state government. In many States, much of the legislature's activity involves the enactment of so-called local [p581] legislation, directed only to the concerns of particular political subdivisions. And a State may legitimately desire to construct districts along political subdivision lines to deter the possibilities of gerrymandering. However, permitting deviations from population-based representation does not mean that each local governmental unit or political subdivision can be given separate representation, regardless of population. Carried too far, a scheme of giving at least one seat in one house to each political subdivision (for example, to each county) could easily result, in many States, in a total subversion of the equal population principle in that legislative body. [n62] This would be especially true in a State where the number of counties is large, and many of them are sparsely populated, and the number of seats in the legislative body being apportioned does not significantly exceed the number of counties. [n63] Such a result, we conclude, would be constitutionally impermissible. And careful judicial scrutiny must, of course, be given, in evaluating state apportionment schemes, to the character, as well as the degree, of deviations from a strict population basis. But if, even as a result of a clearly rational state policy of according some legislative representation to political subdivisions, population is submerged as the controlling consideration in the apportionment of seats in the particular legislative body, then the right of all of the State's citizens to cast an effective and adequately weighted vote would be unconstitutionally impaired. [p582]