Hadley v. Junior College District of Metropolitan Kansas City, 397 U.S. 50 (1970)
Hadley v. Junior College District is a cornerstone in the Supreme Court's one-person, one-vote jurisprudence.
Does the Equal Protection Clause's one-person, one-vote requirement apply to the election of members of a junior college district's board of trustees, such that subdistricts must be apportioned on a substantially equal-population basis?
As a general rule, whenever a State chooses to select persons by popular election to perform governmental functions, the Equal Protection Clause of the Fourteenth Amendment requires that each qualified voter have an equal opportunity to participate in that election. Practically, this means that electoral districts for such offices must be apportioned on a substantially equal-population basis, so that, as nearly as practicable, one person's vote is worth as much as another's.
Yes. The one-person, one-vote principle applies. Because the junior college district's trustees were chosen by popular election to perform governmental functions, the use of subdistricts with significantly unequal populations violated the Equal Protection Clause.
Hadley cements the extension of one-person, one-vote to local and regional bodies elected to perform governmental functions. It provides a clear, administrable rule: if officials are popularly elected and wield governmental power, districts must be apportioned on a substantially equal-population basis. The case is frequently paired with later decisions—such as Salyer Land Co. v. Tulare Lake Basin Water Storage District and Ball v. James—which carve out exceptions for certain special-purpose districts that disproportionately affect discrete interests (e.g., landowners) and thus may deviate from strict population equality. For law students, Hadley is vital in Constitutional Law and Election Law for understanding equal protection constraints on local governance and the contours of the one-person, one-vote doctrine.