Plumas County, county in the Sierra Nevada, California, United States. As of 2020 county had an estimated population of 18,967 inhabitants. The county was created 169 years ago in 1854. Its county seat is "Quincy".
Cities, Towns, Neighborhoods & Other Populated Places in Plumas County.
|East Quincy||Census-designated place in Plumas County, California||Plumas||2,489|
|Portola||City in Plumas County, California, United States||Plumas||1,913|