Tohono O'odham Nation
Government AdministrationArizona, United States501-1000 Employees
The Tohono O’odham Nation is a Native American government organized into judicial, legislative, and executive branches, operating from Sells in the region of southern Arizona. The nation administers a large reservation totaling about 2.8 million acres, extending east to Tucson and south toward the Mexican border, and serves roughly 30,000 enrolled members, about half of whom reside on the reservation within eleven districts. Its executive branch is led by an elected chairman serving a four-year term, while the legislative branch comprises representatives from each district to form the council. The organization functions within the government administration sector, with responsibilities that include governance, legal proceedings, and community oversight across a sizable jurisdiction. In recent years, the nation has been involved in inter-tribal and regional matters, including partnerships and formal actions related to regional energy infrastructure and development initiatives, reflecting an active role in regional affairs. The nation is based in Sells, Arizona, and maintains a public-facing online presence at its official website.