Jump to another county SIZE 1,706 mi² FOUNDED 1913 COUNTY SEAT PLENTYWOOD POPULATION 3,309 LARGEST CITY PLENTYWOOD COUNTY NUMBER 34 County Fun Fact Bob Southland’s mural portraying the history Sheridan County measures 74 feet by 4 feet and is believed to be the longest interior painting in Montana. SENATORLAWMAKER FOR THIS COUNTY Sen. Mike Lang…

COUNTY SEAT: THOMPSON FALLS
POPULATION: 11,413

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POPULATION: 9,233

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POPULATION: 11,004

COUNTY SEAT: SIDNEY
POPULATION: 10,803

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POPULATION: 43,806

Population: 1,252 (2019)
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POPULATION: 6,890

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POPULATION: 5,911