Old Map of Lewis County Wa

Lewis County is a county in the U.S. state of Washington. As of the 2020 census, the county's population was 82,149. The county seat is Chehalis, and its largest city is Centralia. Lewis County comprises the Centralia, WA Micropolitan Statistical Area, which is also included in the Seattle-Tacoma, WA Combined Statistical Area.
  • Country: United States
  • State: Washington
  • Founded: December 19, 1845
  • Named for: Meriwether Lewis
  • Seat: Chehalis
  • Largest city: Centralia
  • Congressional district: 3rd
Data from: en.wikipedia.org