Cheyenne River Reservation and Off-Reservation Trust Land
Cheyenne River Reservation and Off-Reservation Trust Land is a federal reservation with off-reservation trust land in Dewey County and Ziebach County, South Dakota, as the Census Bureau maps it. About 7,582 people live there (2020–2024 estimate). It covers 4,266 sq mi (11,048 km²) of land.
- Population, 2020–2024 estimate
- 7,582
- What it is
- Federal reservation · Off-reservation trust land
- Counties
- Dewey County55% of its landZiebach County45% of its land
- Land area
- 4,266 sq mi (11,048 km²)
- Median household income
- $54,089 ± $4,933
- Median home value
- $82,400 ± $6,248
- Water area
- 153 sq mi (397 km²)
- State
- South Dakota
- Census code
- 0605
- Coordinates (central point)
- 45.087748, -101.237588
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
- North Eagle Butte (CDP)1,481 people
- Eagle Butte (city)1,458 people
- Timber Lake (city)779 people
- Dupree (city)557 people
- La Plant (CDP)240 people
- Cherry Creek (CDP)224 people
- Isabel (town)214 people
- Whitehorse (CDP)162 people
- Green Grass (CDP)78 people
- Bridger (CDP)66 people
- Swift Bird (CDP)35 people
- Lantry (CDP)3 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.