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Custer County, Montana

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Custer County, Montana Map

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An detailed map of Custer County. Click on a nearby County to view more information about that County.

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About Custer County, Montana

Custer County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 11,867. Its county seat is Miles City. The county was established on June 2, 1865, as one of the nine original counties of the Territory of Montana named Big Horn County, and was renamed on February 16, 1877, in honor of Lieutenant Colonel George Armstrong Custer.

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