There are 7 zip codes in Gregory County, South Dakota. The most populated is 57533, located in Gregory. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
575331,697Gregory
57523968Burke
57317641Bonesteel
57529271Dallas
57538258Herrick
57335227Fairfax
5757131Saint Charles
showing: 7 rows

Zip Codes in Gregory County, South Dakota by Population (2024)