Blaine County, Montana
Blaine County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
COUNTY OF BLAINE
GUS Population: 6,903 (2024)
ID: 129991
|
County | Official County Government |
Contact: CHAIR
PO BOX 278, CHINOOK MT 59523-0278
|
|
GUS Population: 1,162 (2024)
ID: 204866
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK/TREASURER
PO BOX 1177, CHINOOK MT 59523-1177
|
|
CITY OF HARLEM
GUS Population: 757 (2024)
ID: 108112
|
Municipal | Municipal Government Within County |
Contact: CLERK TREASURER
PO BOX 579, HARLEM MT 59526-0579
|