Colorado River Indian Reservation
Colorado River Indian Reservation is a federal reservation in La Paz County, Arizona; and San Bernardino County and Riverside County, California, as the Census Bureau maps it. About 8,234 people live there (2020–2024 estimate). It covers 457 sq mi (1,185 km²) of land.
- Population, 2020–2024 estimate
- 8,234 ± 436
- What it is
- Federal reservation
- Counties
- La Paz County, AZ84% of its landSan Bernardino County, CA10% of its landRiverside County, CA7% of its land
- Land area
- 457 sq mi (1,185 km²)
- Median household income
- $55,082 ± $4,860
- Median home value
- $186,600 ± $51,329
- Water area
- 6.66 sq mi (17.2 km²)
- States
- Arizona, California
- Census code
- 0735
- Coordinates (central point)
- 33.939113, -114.388115
These coordinates mark a central point for the area, not an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.
Communities in this area, largest first
- Big River, California (CDP)1,140 people
- Bluewater (CDP)897 people
- Bluewater, California (CDP)177 people
- Poston (CDP)105 people
These places’ central points lie inside the area. People counts are American Community Survey 2020–2024 5-year estimates.
Before using this answer
These Census boundaries don’t decide tribal membership, jurisdiction or land status, and they aren’t a land acknowledgment. For services, enrollment or jurisdiction, ask the tribal government.