
Plains
- County:
- Sanders County
- County Seat:
- No
- Area (mi²):
- 0.615
- State:
- Montana
Plains is a town located in Sanders County, Montana. Plains has a 2025 population of 1,296. Plains is currently growing at a rate of 2.94% annually and its population has increased by 16.65% since the most recent census, which recorded a population of 1,111 in 2020.
The average household income in Plains is $69,768 with a poverty rate of 19.15%. The median age in Plains is 43.5 years: 43.3 years for males, and 49.7 years for females.