Plumas County is a county in the Sierra Nevada of California, United States. As of the 2010 census, the population was 20,007.[1] The county seat is Quincy,[3] and the only incorporated city is Portola. The largest community in the county is East Quincy. The county was named for the SpanishRío de las Plumas (the Feather River), which flows through the county.

Plumas County has three nearby airports. Click the links below to view more information.