Lake County is a county located in the northwest part of the U.S. state of Montana. As of the 2020 census, the population was 31,134. Its county seat is Polson.

Geography

According to the United States Census Bureau, the county has a total area of , of which is land and (9.9%) is water. Over two-thirds (67.7%) of the county's land lies within the Flathead Indian Reservation.

Adjacent counties

  • Flathead County - north
  • Missoula County - east
  • Sanders County - west

National protected areas

  • Bison Range (part)
  • Flathead National Forest (part)
  • Ninepipe National Wildlife Refuge
  • Pablo National Wildlife Refuge
  • Swan River National Wildlife Refuge

Demographics

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Communities

Cities

  • Polson (county seat)
  • Ronan

Town

  • St. Ignatius

Census-designated places

  • Arlee
  • Bear Dance
  • Big Arm
  • Charlo
  • Dayton
  • Elmo
  • Finley Point
  • Jette
  • Kerr
  • Kicking Horse
  • Kings Point
  • Lake Mary Ronan
  • Lindisfarne
  • Niarada
  • Pablo
  • Ravalli
  • Rocky Point
  • Rollins
  • Swan Lake
  • Turtle Lake
  • Woods Bay

Unincorporated communities

  • Allentown
  • Post Creek
  • Proctor
  • Round Butte
  • Salmon Prairie
  • Sipes

Education

School districts include:

K-12 (Unified):

  • Hot Springs K-12 Schools
  • St. Ignatius K-12 Schools

High school: