
Marion
- County:
- Flathead County
- County Seat:
- No
- Area (mi²):
- 16.87
- State:
- Montana
Marion is a CDP located in Flathead County, Montana. Marion has a 2025 population of 1,302. Marion is currently growing at a rate of 2.2% annually and its population has increased by 25.07% since the most recent census, which recorded a population of 1,041 in 2020.
The average household income in Marion is $73,573 with a poverty rate of 12.29%. The median age in Marion is 47.6 years: 48.8 years for males, and 43.9 years for females.