Montana has 56 counties. The largest is Yellowstone County (165,524 people) and the smallest is Petroleum County (416). Median home values run from $135K in Prairie County to $753K in Madison County (Zillow ZHVI 2024). Effective property tax rates range from 0.45% in Madison County to 1.57% in Blaine County (Tax Foundation 2023). Median household income is highest in Gallatin County ($83K) and lowest in Glacier County ($41K) (Census ACS 2022). Pick a county below for its full profile, or open the county map to filter by your own ranges.
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