There are 9 zip codes in Sheridan County, Montana. The most populated is 59254, located in Plentywood. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
592541,900Plentywood
59275559Westby
59247303Medicine Lake
59211255Antelope
59219205Dagmar
59258178Reserve
59256122Raymond
5925282Outlook
5925767Redstone
showing: 9 rows

Zip Codes in Sheridan County, Montana by Population (2024)