The La Posta Reservation spans 3,556.49 acres and is located in the Laguna Mountains, 56 miles east of San Diego and 46 miles west of El Centro. Located just west of the Manzanita and Campo Indian Reservations, the reservation is bordered on the southwest corner by Interstate 8. The reservation was established on February 10, 1893, under the authority of the Act of January 12, 1891.

The residents of La Posta Reservation are members of the Kumeyaay Tribe. The group’s language belongs to the Yuman branch of the greater Hokan linguistic family. The Kumeyaays’ traditional territory encompassed what is now San Diego County.

The La Posta Reservation is governed by a general council. Elected council members include a chairperson, a vice-chairperson, secretary-treasurer, and two council members. Elected members serve two-year terms, and the general council meets four times a year. The band is organized under an IRA constitution that was approved on March 5, 1973.