Blaine County, Montana

county in northern Montana, United States

Blaine County is a county found in the U.S. state of Montana. As of the 2020 Census, there were 7,044 people.[1] Its county seat is Chinook.[2]

Blaine County
Blaine County Courthouse in Chinook
Blaine County Courthouse in Chinook
Map of Montana highlighting Blaine County
Location within the U.S. state of Montana
Map of the United States highlighting Montana
Montana's location within the U.S.
Coordinates: 48°26′N 108°58′W / 48.44°N 108.96°W / 48.44; -108.96
Country United States
State Montana
Named forJames G. Blaine
Largest cityChinook
 • Total4,239 sq mi (10,980 km2)
 • Land4,228 sq mi (10,950 km2)
 • Water11 sq mi (30 km2)  0.3%
 • Total7,044
 • Density1.7/sq mi (0.64/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
  • Montana county number 24


  1. "QuickFacts: Blaine County, Montana". United States Census Bureau. Retrieved January 4, 2024.
  2. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.