Stillwater County
Also known as Stillwater County, Montana, Stillwater County, MT
county in Montana, United States
Key facts
- Country
- United States
- State
- Montana
- Named after
- Stillwater River
- Seat
- Columbus
- Largest town
- Columbus
- Total
- 1,805 sq mi (4,670 km )
- Land
- 1,795 sq mi (4,650 km )
- Water
- 9.2 sq mi (24 km ) 0.5%
- Estimate 2025
- 9,445
- Density
- 4.993/sq mi (1.928/km )
- Time zone
- UTC−7 ( Mountain )
- Summer dst
- UTC−6 ( MDT )
- Congressional district
~4 min read
Article
Mouat chromite mine and mill, 1942
Stillwater County is a county in the U.S. state of Montana. As of the 2020 census, the population was 8,963. Its county seat is Columbus.