The Colorado River Indian Reservation is a Native American reservation in the southwest United States.
Its territory is primarily in western La Paz County, Arizona, with smaller portions in southeastern San Bernardino, and northeastern Riverside counties, California.
It has a total land area of 1,119.4445 km² (432.22 sq mi), most of it within Parker Valley.
It borders the Palo Verde Valley in the southwest boundaries.
Tribal headquarters are in Parker, Arizona.

Tribal members mainly live in communities in and around Parker, the largest community, and Poston.
The 2000 census reported a population of 9,201 persons residing on the reservation.
The Colorado River Indian Reservation is a Native American reservation in the southwest United States. Its territory is primarily in western La Paz County, Arizona, with smaller portions in southeastern San Bernardino, and northeastern Riverside counties, California. It has a total land area of 1,119.4445 km² (432.22 sq mi), most of it within Parker Valley. It borders the Palo Verde Valley in the southwest boundaries. Tribal headquarters are in Parker, Arizona. 
Tribal members mainly live in communities in and around Parker, the largest community, and Poston. The 2000 census reported a population of 9,201 persons residing on the reservation.
Colorado River Indian Tribes