Granite County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 3,309. Its county seat is Philipsburg. The county was founded in 1893, and was named for a mountain which contains the Granite Mountain silver mine.
Geography
According to the United States Census Bureau, the county has a total area of , of which is land and (0.3%) is water.
Major highways
- 20px Interstate 90
- 20px U.S. Highway 10 (Former)
- 20px U.S. Highway 12
- 20px Montana Highway 1
- 20px Montana Highway 38
Adjacent counties
- Missoula County - north
- Powell County - east
- Deer Lodge County - south
- Ravalli County - west
National protected areas
- Deerlodge National Forest (part)
- Lolo National Forest (part)
Politics
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