The Salt River Project (SRP) is the umbrella name for two separate entities: the Salt River Project Agricultural Improvement and Power District, an agency of the state of Arizona that serves as an electrical utility for the Phoenix metropolitan area, and the Salt River Valley Water Users' Association, a utility cooperative that serves as the primary water provider for much of central Arizona. It is one of the primary public utility companies in Arizona.

The Association is headed by a 10-member board and a 30-member council, while the District is headed by a 14-member board and a 30-member council. Both are elected by all landowners in the SRP service area through a "debt-proportionate" system. For instance, a person who owns five acres casts five votes.