 clio (formerly, wash) is a census-designated place in plumas county, california, united states. clio is located  southeast of quincy. the population was 66 at the 2010 census, down from 90 at the 2000 census. ==history== the wash post office opened in 1875, changed its name to wash and moved to the railroad depot in 1904. ==geography== clio is located at  (39.745044, -120.571412). according to the united states census bureau, the cdp has a total area of , all of it land. ==demographics== ===2010=== the 2010 united states census{{cite web|url=http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0614106|title=2010 census interactive population search: ca 
Census-designated_places_in_California Census-designated_places_in_Plumas_County,_California