Justice Stewart
delivered the opinion of the Court.
This appeal concerns the constitutionality of the system for electing the directors of a large water reclamation district in Arizona, a system which, in essence, limits voting eligibility to landowners and apportions voting power according to the amount of land a voter owns. The case requires us to consider whether the peculiarly narrow function of this local governmental body and the special relationship of one class of citizens to that body releases it from the strict demands of the one-person, one-vote principle of the Equal Protection Clause of the Fourteenth Amendment.
I
The public entity at issue here is the Salt River Project Agricultural Improvement and Power District, which stores and delivers untreated water to the owners of land comprising 236,000 acres in central Arizona. The District, formed as a governmental entity in 1937, subsidizes its water operations by selling electricity, and has become the supplier of electric power for hundreds of thousands of people in an area including a large part of metropolitan Phoenix. Nevertheless, the history of the District began in the efforts of Arizona farmers in the 19th century to irrigate the arid lands of the Salt River Valley, and, as the parties have stipulated, the primary purposes of the District have always been the storage, delivery, and conservation of water.
As early as 1867, farmers in the Salt River Valley attempted to irrigate their lands with water from the Salt River. In 1895, concerned with the erratic and unreliable flow of the river, they formed a “Farmers Protective Association,” which helped persuade Congress to pass the Reclamation Act of 1902, 32 Stat. 388, 43 U. S. C. § 371 et seg. Under that Act, the United States gave interest-free loans to help landowners build reclamation projects. The Salt River Project, from which the District developed, was created in 1903 as a result of this legislation. In 1906, Congress authorized projects created under the Act to generate and sell hydroelectric power, 43 U. S. C. § 522, and the Salt River Project has supported its water operations by this means almost since its creation. The 1902 Act provided that the water users who benefited from the reclamation project had to agree to repay to the United States the costs of constructing the project, and the Salt River Valley Water Users Association was organized as an Arizona corporation in 1903 to serve as the contracting agent for the landowners. The Association’s Articles, drafted in cooperation with the Federal Reclamation Service, gave subscribing landowners the right to reclamation water and the power to vote in Association decisions in proportion to the number of acres the subscribers owned. The Articles also authorized acreage-proportionate stock assessments to raise income for the Association, the assessments becoming a lien on the subscribing owners’ land until paid. For almost 15 years, the Federal Reclamation Service operated and maintained the project’s irrigation system for the landowners; under a 1917 contract with the United States, however, the Association itself took on these tasks, proceeding to manage the project for the next 20 years.
The Association faced serious financial difficulties during the Depression as it built new dams and other works for the project, and it sought a means of borrowing money that would not overly encumber the subscribers’ lands. The means seemed to be available in Arizona’s Agricultural Improvement District Act of 1922, which authorized the creation of special public water districts within federal reclamation projects. Ariz. Rev. Code of 1928, § 3467 et seq. Such districts, as political subdivisions of the State, could issue bonds exempt from federal income tax. Nevertheless, many Association members opposed creating a special district for the project, in part because the state statute would have required that voting power in elections for directors of the district be distributed per capita among landowners, and not according to the acreage formula for stock assessments and water rights. In 1936, in response to a request from the Association, the state legislature amended the 1922 statute. Under the new statutory scheme, which is essentially the one at issue in this case, the legislature allowed the district to limit voting for its directors to voters, otherwise regularly qualified under state law, who own land within the district, and to apportion voting power among those landowners according to the number of acres owned. Ariz. Rev. Stat. Ann. §§ 45-909, 45-983 (Supp. 1980-1981). The Salt River Project Agricultural Improvement and Power District was then formed in 1937, its boundaries essentially the same as the Association’s. Under the 1937 agreement, the Association made the District its contracting agent, and transferred to the District all its property, and the Association in turn agreed to continue to operate and maintain the Salt River Project. Under the current agreement, the District itself manages the power and water storage work of the project, and the Association, as agent for the District, manages water delivery. As for financing, the statute now permits the special districts to raise money through an acreage-proportionate taxing power that mirrors the Association’s stock assessment scheme, Ariz. Rev. Stat. Ann. §§ 45-1014, 45-1015 (1956), or through bonds secured by liens on the real property within the District, though the bonds can simultaneously be secured by District revenues, Ariz. Rev. Stat. Ann. §45-936 (Supp. 1980-1981).
II
This lawsuit was brought by a class of registered voters who live within the geographic boundaries of the District, and who own either no land or less than an acre of land within the District. The complaint alleged that the District enjoys such governmental powers as the power to condemn land, to sell tax-exempt bonds, and to levy taxes on real property. It also alleged that because the District sells electricity. to virtually half the population of Arizona, and because, through its water operations, it can exercise significant influence on flood control and environmental management within its boundaries, the District’s policies and actions have a substantial effect on all people who live within the District, regardless of property ownership. Seeking declaratory and injunctive relief, the appellees claimed that the acreage-based scheme for electing directors of the District violates the Equal Protection Clause of the Fourteenth Amendment.
On cross-motions for summary judgment and on stipulated facts, the District Court for the District of Arizona held the District voting scheme constitutional and dismissed the complaint. A divided panel of the Court of Appeals for the Ninth Circuit reversed. 613 F. 2d 180. Noting this Court’s repeated application of the one-person, one-vote principle established in Reynolds v. Sims, 377 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 deeision 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, the Court of Appeals considered the constitutionality of the Salt River District’s electoral system by comparing the purposes and effects of the activities of the Salt River District with those of the Tulare Lake Basin Water Storage District.
The Court of Appeals stressed that the water district in Salyer covered a sparsely populated area of wholly agricultural land. 613 F. 2d, at 183. It also noted that the primary function of the Tulare Lake Basin Water Storage District had remained the storage and delivery of water for agriculture, and that the district did not provide such other general public services as utilities. Ibid. Finally, the Court of Appeals pointed out that the income for the district in Salyer came completely from assessments against the landowners. 613 F. 2d, at 183. The Court of Appeals found the Salt River District, at least in its modern form, very different. It pointed out that the Salt River District is a major generator and supplier of hydroelectric power in the State, and that roughly 40% of the water it delivers goes to urban areas for nonagri-cultural uses. Id., at 183-184. The court therefore concluded that the Salt River District does not serve the sort of special, narrow purpose that proved decisive in Salyer. 613 F. 2d, at 183-184. Moreover, though it recognized that the District has $290 million of general obligation bonds outstanding that are secured by a lien on lands owned by the voting members, the Court of Appeals found it significant that all the general obligation bonds have so far been serviced out of the District’s electricity revenues, and that all capital improvements have been financed by revenue bonds, which have been issued in the amount of $600 million, and which are junior to the general obligation bonds. Id., at 184. The court thus concluded that the actual financial burden of running the District has not fallen primarily on the voting landowners, and therefore that the activities of this water district, unlike those of the district in Salyer, do not disproportionately affect landowners as such. 613 F. 2d, at 184-185.
The Court of Appeals was correct in conceiving the question in this case to be whether the purpose of the District is sufficiently specialized and narrow and whether its activities bear on landowners so disproportionately as to distinguish the District from those public entities whose more general governmental functions demand application of the Reynolds principle. We conclude, however, that, in its efforts to distinguish Salyer the Court of Appeals did not apply these criteria correctly to the facts of this case.
III
Reynolds v. Sims, supra, held that the Equal Protection Clause requires adherence to the principle, of one-person, one-vote in elections of state legislators. Avery v. Midland County, 390 U. S. 474, extended the Reynolds rule to the election of officials of a county government, holding that the elected officials exercised “general governmental powers over the entire geographic area served by the body.” 390 U. S., at 485. The Court, however, reserved any decision on the application of Reynolds to “a special-purpose unit of government assigned the performance of functions affecting definable groups of constituents more than other constituents.” 390 U. S., at 483-484. In Hadley v. Junior College District, 397 U. S. 50, the Court extended Reynolds to the election of trustees of a community college district because those trustees “exercised general governmental powers” and “perform[ed] important governmental functions” that had significant effect on all citizens residing within the district. 397 U. S., at 53-54. But in that case the Court stated: “It is of course possible that there might be some case in which a State elects certain functionaries whose duties are so far removed from normal governmental activities and so disproportionately affect different groups that a popular election in compliance with Reynolds . . . might not be required . . . .” Id., at 56.
The Court found such a case in Salyer. The Tulare Lake Basin Water Storage District involved there encompassed 193,000 acres, 85% of which were farmed by one or another of four corporations. Salyer Land Co. v. Tulare Lake Basin Water Storage District, 410 U. S., at 723. Under California law, public water districts could acquire, store, conserve, and distribute water, and though the Tulare Lake Basin Water Storage District had never chosen to do so, could generate and sell any form of power it saw fit to support its water operations. Id., at 723-724. The costs of the project were assessed against each landowner according to the water benefits the landowner received. Id., at 724. At issue in the case was the constitutionality of the scheme for electing the directors of the district, under which only landowners could vote, and voting power was apportioned according to the assessed valuation of the voting landowner’s property. The Court recognized that the Tulare Lake Basin Water Storage District did exercise “some typical governmental powers,” including the power to hire and fire workers, contract for construction of projects, condemn private property, and issue general obligation bonds. Id., at 728, and n. 7. Nevertheless, the Court concluded that the district had “relatively limited authority,” because “its primary purpose, indeed the reason for its existence, is to provide for the acquisition, storage, and distribution of water for farming in the Tulare Lake Basin.” Id., at 728 (footnote omitted). The Court also noted that the financial burdens of the district could not but fall on the landowners, in proportion to the benefits they received from the district, and that the district’s actions therefore disproportionately affected the voting landowners. Id., at 729. The Salyer Court thus held that the strictures of Reynolds did not apply to the Tulare District, and proceeded to inquire simply whether the statutory voting scheme based on land valuation at least bore some relevancy to the statute’s objectives. The Court concluded that the California Legislature could have reasonably assumed that without voting power apportioned according to the value of their land, the landowners might not have been willing to subject their lands to the lien of the very assessments which made the creation of the district possible. 410 U. S., at 731.
As 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 goes to urban areas or is used for nonagricul-tural purposes in farming areas. Finally whereas all operating costs of the Tulare District were born by the voting landowners through assessments apportioned according to land value, most of the capital and operating costs of the Salt River District have been met through the revenues generated by the selling of electric power. Nevertheless, a careful examination of the Salt River District reveals that, under the principles of the Avery, Hadley, and Salyer cases, these distinctions do not amount to a constitutional difference.
First, the District simply does not exercise the sort of governmental powers that invoke the strict demands of Reynolds. The District cannot impose ad valorem property taxes or sales taxes. It cannot enact any laws governing the conduct of citizens, nor does it administer such normal functions of government as the maintenance of streets, the operation of schools, or sanitation, health, or welfare Services.
Second, though they were characterized broadly by the Court of Appeals, even the District’s water functions, which constitute the primary and originating purpose of the District, are relatively narrow. The District and Association do not own, sell, or buy water, nor do they control the use of any water they have delivered. The District simply stores water behind its dams, conserves it from loss, and delivers it through project canals. It is true, as the Court of Appeals noted, that as much as 40% of the water delivered by the District goes for nonagricultural purposes. But the distinction between agricultural and urban land is of no special constitutional significance in this context. The constitutionally relevant fact is that all water delivered by the Salt River District, like the water delivered by the Tulare Lake Basin Water Storage District, is distributed according to land ownership, and the District does not and cannot control the use to which the landowners who are entitled to the water choose to put it. As repeatedly recognized by the Arizona courts, though the state legislature has allowed water districts to become nominal public entities in order to obtain inexpensive bond financing, the districts remain essentially business enterprises, created by and chiefly benefiting a specific group of landowners. Niedner v. Salt River Project Agricultural Improvement and Power Dist., 121 Ariz. 331, 590 P. 2d 447; Uhlmann v. Wren, 97 Ariz. 366, 374, 401 P. 2d 113, 124; Local 266, I. B. E. W. v. Salt River Project Agricultural Improvement and Power Dist., 78 Ariz. 30, 41-42, 275 P. 2d 393, 402. As in Salyer, the nominal public character of such an entity cannot transform it into the type of governmental body for which the Fourteenth Amendment demands a one-person, one-vote system of election.
Finally, neither the existence nor size of the District's power business affects the légality of its property-based voting scheme. As this Court' has noted in a different context, the provision of electricity is not a traditional element of governmental sovereignty, Jackson v. Metropolitan Edison Co., 419 U. S. 345, 353, and so is not in itself the sort of general or important governmental function that would make the government provider subject to the doctrine of the Reynolds case. In any event, since the electric, power functions were stipulated to be incidental to the water functions which are the District’s primary purpose, they cannot change the character of that enterprise. The Arizona Legislature permitted the District to generate and sell electricity to subsidize the water operations, which were the beneficiaries intended by the statute. A key part of the Salyer decision was that the voting scheme for a public entity like a water district may constitutionally reflect the narrow primary purpose for which the district is created. In this case, the parties have stipulated that the primary legislative purpose of the District is to store, conserve, and deliver water for use by District landowners, that the sole legislative reason for making water projects public entities was to enable them to raise revenue through interest-free bonds, and that the development and sale of electric power was undertaken not for the primary purpose of providing electricity to the public, but “to support the primary irrigation functions by supplying power for reclamation uses and by providing revenues which could be applied to increase the amount and reduce the cost of water to Association subscribed lands.”
The appellees claim, and the Court of Appeals agreed, that the sheer size of the power operations and the great number of people they affect serve to transform the District into an entity of general governmental power. But no matter how great the number of nonvoting residents buying electricity from the District, the relationship between them and the District’s power operations is essentially that between consumers and a business enterprise from which they buy. Nothing in the Avery, Hadley, or Salyer cases suggests that the volume of business or the breadth of economic effect of a venture undertaken by a government entity as an incident of its narrow and primary governmental public function can, of its own weight, subject the entity to the one-person, one-vote requirements of the Reynolds case.
The functions of the Salt River District are therefore of the narrow, special sort which justifies a departure from the popular-election requirement of the Reynolds case. And as in Salyer, an aspect of that limited purpose is the disproportionate'relationship the District’s functions bear to the specific class of people whom the system makes eligible to vote. The voting landowners are the only residents of the District whose lands are subject to liens to secure District bonds. Only these landowners are subject to the acreage-based taxing power of the District, and voting landowners are the only residents who have ever committed capital to the District-through stock assessments charged by the Association. The Salyer opinion did not say that the selected class of voters for a special public entity must be the only parties at all affected by the operations of the entity, or that their entire economic well-being must depend on that entity. Rather, the question was whether the effect of the entity’s operations on them was disproportionately greater than the effect on those seeking the vote.
As in the Salyer case, we conclude that the voting scheme for the District is constitutional because it bears a reasonable relationship to its statutory objectives. Here, according to the stipulation of the parties, the subscriptions of land which made the Association and then the District possible might well have never occurred had not the subscribing landowners been assured a special voice in the conduct of the District’s business. Therefore, as in Salyer, the State could rationally limit the vote to landowners. Moreover, Arizona could rationally make the weight of their vote dependent upon the number of acres they own, since that number reasonably reflects the relative risks they incurred as landowners and the distribution of the benefits and the burdens of the District’s water operations.
The judgment of the Court of Appeals is reversed, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
The review in this opinion of the history, organization, functions, and financing of the District is drawn from the stipulation of-facts in the District Court.
In recent years, the method of electing the Board of Directors has departed somewhat from the strict one-acre, one-vote system originally used by the Association and the District. In 1969 the state legislature amended the Agricultural Improvement Act to permit owners of less than one acre to cast fractional votes in proportion to their acreage. Ariz. Rev. Stat. Ann. § 45-983C (Supp. 1980-1981). A second change had to do with the membership of the Board of Directors itself. Before 1976, there were 10 directors, each elected from a designated geographical part of the District. In 1976, after the District Court had dismissed the complaint in this case, the state legislature enlarged the Board to 14 members and provided that the 4 new members were to be elected at large, with each landowner in the District having one vote in the at-large election. Ariz. Rev. Stat. Ann. §§ 45-961B, 45-963 (Supp. 1980-1981). Each special water district also has a President and Vice President, elected at large on an acreage-weighted basis. § 45-963.
In holding that the one-person, one-vote principle of Reynolds applies to the Salt River District, the Court of Appeals stressed the scope of the District’s power operations and the diversity of its water operations, and rejected the appellees’ argument that the power operations are essentially business activities incidental to the District’s narrow primary purpose of storing and delivering water: “[T]he scale of the District’s operations simply does not permit the interpretation that the electric utility is a side venture that the District dabbles in to pick up a little extra money in order to benefit the landowners. The operation of the utility has taken on independent significance. . . . The electric utility operations of the District are so substantial in scope and are so closely interwoven with the water delivery functions of the District that it is not a special limited purpose district whose operations have a disproportionate effect on landowners as a class.” 613 F. 2d, at 184-185.
Among the duties of the County Commissioners Court in Avery were establishing courthouses and jails, appointing health officials, building roads and bridges, administering welfare, setting the county tax rate, adopting the county budget, and equalizing tax assessments. 390 U. S. at 476.
“[T]he Constitution does not require that a uniform straitjacket bind citizens in devising mechanisms of local government suitable for local needs and efficient in solving local problems.” Id., at 485.
The Court held that the Junior College District in Hadley did not fall within this exception because “[e]ducation has traditionally been a vital governmental function, and these ... are governmental officials in every relevant sense of that term.” 397 U. S., at 56.
On the same day it decided Salyer, the Court upheld a similar scheme in Wyoming, under which the voters in a referendum on the creation of a water district had to be landowners, and in which the decision to create the district required the votes of landowners representing a majority of the acreage of the lands within the proposed district. Associated Enterprises, Inc. v. Toltec Watershed Improvement Dist., 410 U. S. 743 (per curiam).
In Kramer v. Union Free School District No. 15, 395 U. S. 621, 627, the Court stated that the exclusion of otherwise qualified voters from a particular election must be justified by some compelling state interest. But in considering whether the voting scheme for the Tulare Lake Basin Water Storage District bore some relevancy to the purpose for which the scheme was adopted, Salyer imposed no such requirement.
Approximately 15% of the water delivered by the District is used in farming areas for nonagricultural irrigation purposes such as schools, playgrounds, and parks. Another 25% is delivered to municipalities. Of the latter, some belongs to the municipalities themselves as landowners, and some belongs to landowning city residents who have chosen the cities as their receiving agents.
As the Court of Appeals noted, the District has $290 million of general obligation bonds outstanding that are secured by the statutory hen on District lands, but the bonds have been serviced entirely out of the District’s power earnings, and since 1973 all borrowing for capital improvements has been secured by pledges of revenues. The District now has outstanding $600 million of these revenue bonds, which are junior to the general obligation bonds. The voting landowners have also committed some capital to the Salt River Project, through stock assessments charged by the Association, but the Association last exercised its assessment power in 1951.
In Salyer, we recognized that the powers to contract for and staff projects, to condemn property, and to issue bonds do not amount to such general governmental authority. 410 U. S., at 728, n. 8. And as recognized by the dissenting opinion in the companion case to Salyer, the power to levy and collect special assessments also does not create such general governmental authority. Associated Enterprises, Inc. v. Toltec Watershed Improvement Dist., supra, at 749 (Douglas, J.).
In other cases, the Court has found invalid state laws tying voting eligibility to property ownership in elections to approve issuance of bonds to finance a city library, Hill v. Stone, 421 U. S. 289, and a municipal utility, Cipriano v. City of Houma, 395 U. S. 701 (per curiam), and to issue general obligation bonds secured by a lien on real property, Phoenix v. Kolodziejski, 399 U. S. 204. In those cases, however, the elections concerned the operations of traditional municipalities exercising the full range of normal governmental powers, and so the cases do not bear on the question of a special-purpose governmental entity like the Salt River District. See Salyer Land Co. v. Tulare Lake Basin Water Storage District, 410 U. S., at 727.
The appellees have alleged that the District’s power over flood control affects all residents within District boundaries and therefore represents the sort of important governmental function that invokes the Reynolds one-person, one-vote doctrine. However, as we held in Salyer, where such a power over flood control is incidental to a District’s primary water functions, it is not of decisive constitutional significance. 410 U. S., at 728, n. 8. Indeed, in both the Salyer and Associated Enterprises, Inc., cases, control of erosion and flooding was one of the express statutory purposes of the water districts; the Salt River District has no such express statutory power, and so any influence it exerts over flood control is simply an effect of the exercise of its more limited statutory water functions.
The Court of Appeals slightly misconstrued the facts in stating that a significant portion of water delivered by the District “is used and paid for in a manner unrelated to agriculture or land ownership.” 613 F. 2d, at 184 (emphasis added). Though some landowning city residents have designated their cities as contracting agents to receive their water allotments, see n. 9, supra, the stipulated facts show that all entitlement to water ■ in the District derives from land ownership, whether rights to surface water appurtenant to land or acreage-based entitlements to stored water.
Significantly, though the District’s nominal status as a governmental body technically exempts it from state taxes, it makes ad valorem contributions to the state treasury according to the same formula by which the State’s private utilities pay property taxes. Ariz. Rev. Stat. Ann. §45-2201 et seq. (Supp. 1980-1981).
The Tulare Lake Basin Water Storage District in Salyer had the statutory power to generate and sell electricity at any time and in any manner, 410 U. S., at 724, but that fact did not alter the Court’s view that the district’s purpose was too narrow to invoke the Reynolds principle.
The stipulated facts show that, measured as a percentage of gross-power revenues, the amount of District revenues used to support the water operations is roughly equal to the sum of the dividends paid to common stockholders in a comparable private electric utility.
As stated by the Arizona Supreme Court:
“Most municipal corporations are owned by the public and managed by public officials. . . . Such is not the case here. . . . The public does not own the District. The governmental entity such as a city or town does not manage or benefit from the profits of this District. Instead, the owners are private landholders. The profits from the sale of electricity are used to defray the expense in irrigating these private lands for personal profit. The public interest is merely that of consumers of its product, for which they pay. . . . The District does not function to ‘serve the whole people’ but rather the District operates for the benefit of these ‘inhabitants of the district’ who are private owners.” Local 266, I. B. E. W. v. Salt River Agricultural Improvement and Power Dist., 78 Ariz. 30, 44, 275 P. 2d 393, 402-403.
Indeed, this consumer-business relationship is somewhat obscured by the appellees’ claim of standing. The stipulated facts show that the District delivers 15% of its electric power to customers outside the District boundaries, and that 15% of lands within the District receive electricity from a private utility, rather than the District. Thus, if the appellees’ claim of a constitutional right to vote for directors of the District rests on their relationship to the power functions of the District, they represent the wrong class of putative voters.
The Court of Appeals found it significant that 98% of the District’s revenues come from sales of electricity, and only 2% from charges assessed for water deliveries. 613 F. 2d., at 184. This fact in no way affects the constitutionality of the voting scheme. When the consumers of electricity supply those power revenues, they are simply buying electricity; they are neither committing capital to the District nor committing any of their property as security for the credit of the District.
The appellees, of course, are qualified voters in Arizona and so remain equal participants in the election of the state legislators who created and have the power to change the District.
It in no way upsets the rationality of this scheme that the 40% of District acreage owned by corporations and municipalities is not voted at all. The lands owned by the corporations and cities are exclusively streets, alleys, canal rights of way, and the bed of the Salt River. Moreover, those lands are not subject to the District’s acreage-based taxing power. Finally, it can hardly be said that the legislature acted irrationally in limiting voting eligibility to landowners who were otherwise qualified electors under state law.