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Yellowstone County, Montana
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Yellowstone County, Montana Map
An detailed map of Yellowstone County. Click on a nearby County to view more information about that County.
Map of Counties in Montana
An interactive map of Counties in Montana. Click on a County to view more information about that County.
About Yellowstone County, Montana
Yellowstone County is the most populous county in the U.S. state of Montana. As of the 2020 census, the population was 164,731. Its county seat is Billings, the state's most populous city. Like the nearby park, Yellowstone County is named after the Yellowstone River which roughly bisects the county, flowing southwest to northeast. The river, in turn, was named for the yellow sandstone cliffs in what is now Yellowstone County.
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This site has an interactive map of Montana Counties. Click on the map to find your Montana county, and view more details. You can also search for your address and use your GPS to find your Montana County.
Find what County you are in, and see official Montana County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.