Pennington County is the name of two counties in the United States:
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Pennington County, Minnesota
Pennington County is a county in the northwestern part of the U.S. state of Minnesota. As of the 2020 census, the population was 13,992. Its county seat is Thief River Falls.
History
The Wisconsin Territory was established by the federal gove ...
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Pennington County, South Dakota
Pennington County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 109,222, making it the second-most populous county in South Dakota. Its county seat is Rapid City. The county was created in 1875, and wa ...
{{Geodis, uscounty