Madison County is a county in the U.S. state of Montana. As of the 2020 census, the population was 8,623. Its county seat is Virginia City. The county was founded in 1865; at the time it was part of the Montana Territory.
Geography
According to the United States Census Bureau, the county has an area of , of which is land and (0.4%) is water.
Major highways
- 20px Interstate 15
- 20px U.S. Highway 91
- 20px U.S. Highway 287
- 20px Montana Highway 41
- 20px Montana Highway 84
- 20px Montana Highway 87
- 20px Montana Highway 55
- 20px Montana Highway 287
Adjacent counties
- Beaverhead County - southwest
- Silver Bow County - northwest
- Jefferson County - north
- Gallatin County - east
- Fremont County, Idaho - south
National protected areas
- Beaverhead National Forest (part)
- Deerlodge National Forest (part)
- Gallatin National Forest (part)
Politics
In presidential elections, Madison County has historically voted predominantly Republican, with Franklin D. Roosevelt the only Democrat to carry the vote since 1916, the last of the three times he did so being in 1940.
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