Fort Belknap Reservation and Off-Reservation Trust Land

Fort Belknap Reservation and Off-Reservation Trust Land is a federal reservation with off-reservation trust land in Blaine County and Phillips County, Montana, as the Census Bureau maps it. About 3,148 people live there (2020–2024 estimate). It covers 1,015 sq mi (2,628 km²) of land.

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Fort Belknap Reservation and Off-Reservation Trust Land in Montana
Fort Belknap Reservation and Off-Reservation Trust Land (simplified outline). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
3,148 ± 252
What it is
Federal reservation · Off-reservation trust land
Counties
Blaine County81% of its landPhillips County19% of its land
Land area
1,015 sq mi (2,628 km²)
Median household income
$50,288 ± $11,360
Median home value
$74,500 ± $9,240
Water area
3.81 sq mi (9.86 km²)
State
Montana
Census code
1150
Coordinates (central point)
48.201990, -108.630473

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

  1. Fort Belknap Agency (CDP)1,227 people
  2. Hays (CDP)1,009 people
  3. Lodge Pole (CDP)170 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.

Find the tribal area at your location or find your county.

See this area on Census.gov ↗