Lake County (California) chart of communities by population (2010 census)

† county seat

Reference 1: Population (2010 Census).

Reference 2: Clearlake, Hidden Valley Lake, † Lakeport, Kelseyville, North Lakeport, Clearlake Riviera, Lucerne, Nice, Clearlake Oaks, Cobb, Middletown, Lower Lake, Upper Lake, Soda Bay, Spring Valley, Robinson Rancheria (Pomo Indians)[50], Big Valley Rancheria (Pomo Indians)[51], Upper Lake Rancheria (Pomo Indians)[52] and Sulphur Bank Rancheria (Pomo Indians)[53].

Source: http://en.wikipedia.org/wiki/Lake_County,_California