Plumas County, California
Founding: 1854 Parent county: Butte Namesake: The Spanish name for the Feather River Seat: Quincy (1854–) Land area: 2,553 square miles Population (2020): 19,790 Population (historic): 4,363 (1860); 6,180 (1880); 4,657 (1900); 7,913 (1930) Periods of population growth: pre-1860–1880; 1900–1950; 1960–2000 Subdivisions: One city; 46 CDPs Pre-1940 residences (estimated): 830 (5.2%) Pre-1940 housing survival rate: 31.7% Pre-1860 housing survival rate (1940): 0.9% Farm housing in disrepair (1950): 7.5% Nonfarm housing in disrepair (1950): 10.6% Average farmhouse value (1930): $2,058 Average outbuilding value (1930): $2,337 Average farmhouse size (1940): 5.7 rooms Number of farms (1920): 150 Average farm size (1920): 228.2 acres _________________________________________________________________________________ Quincy Namesake: Quincy, Illinois Founding: 1854 (platti...