U. S. 533, the Court of Appeals turned its attention to the case in which this Court marked a significant exception to that principle by upholding a state law permitting only landowners to vote in the election of directors of a water district: Salyer Land Co. v. Tulare Lake Basin Water Storage District, 410 U. S. 719. The decision *361 in Salyer resulted from this Court's examination of the nature of the services provided by the water district in that case, and its conclusion that "by reason of its special limited purpose and of the disproportionate effect of its activities on landowners as a group," the water district there was not subject to the strict one-person, one-vote demands of the Reynolds decision. 410 U. S., at 728. Accordingly,noted by the Court of Appeals, the services currently provided by the Salt River District are more diverse and affect far more people than those of the Tulare Lake Basin Water Storage District. Whereas the Tulare District included an area entirely devoted to agriculture and populated by only 77 persons, the Salt River District includes almost half the population of the State, including large parts of Phoenix and other cities. Moreover, the Salt River District, unlike the Tulare District, has exercised its statutory power to generate and sell electric power, and has become one of the largest suppliers of such power in the State. Further, whereas all the water delivered by the Tulare District went for agriculture, roughly 40% of the water delivered by the Salt River District