Siskiyou Oregon County

Oregon County is a county located in the southern portion of the U.S. state of Missouri. As of the 2020 census, the population was 8,635. Its county seat is Alton. The county was officially organized on February 14, 1845, and was named for the Oregon Territory in the northwestern United States.
  • Country: United States
  • State: Missouri
  • Founded: February 14, 1845
  • Named for: Oregon Territory
  • Seat: Alton
  • Largest city: Thayer
  • Congressional district: 8th
Data from: en.wikipedia.org