There are 3 zip codes in Sioux County, North Dakota. The most populated is 58538, located in Fort Yates. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
58538Fort Yates2,274
58528Cannon Ball766
58568Selfridge526

Sioux County, North Dakota Zip Codes by Population (2024)