Pennington County South Dakota On a Map

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 was organized in 1877. It is named for John L. Pennington, fifth Governor of Dakota Territory, who held office in 187…
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 was organized in 1877. It is named for John L. Pennington, fifth Governor of Dakota Territory, who held office in 1875 when the county was formed.
  • Country: United States
  • State: South Dakota
  • Founded: 1875 (created) · 1877 (organized)
  • Named for: John L. Pennington
  • Seat: Rapid City
  • Largest city: Rapid City
  • Congressional district: At-large

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Data from: en.wikipedia.org