There are 3 zip codes in Pennington County, Minnesota. The most populated is 56701, located in Thief River Falls. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
5670112,898Thief River Falls
56754483St. Hilaire
showing: 3 rows

Zip Codes in Pennington County, Minnesota by Population (2024)