Sierraville, California

Sierraville
census-designated place
Sierraville
Sierraville Show map of California Sierraville Show map of the United States
Coordinates: 39°35′23″N 120°22′03″W / 39.58972°N 120.36750°W / 39.58972; -120.36750
Country	United States
State	California
County	Sierra
Area [1]
• Total	5.021 sq mi (13.004 km2)
• Land	5.020 sq mi (13.002 km2)
• Water	0.001 sq mi (0.002 km2)  0.02%
Elevation [2]	4,957 ft (1,511 m)
Population  (2020)[3]
• Total	239
• Density	48/sq mi (18/km2)
Time zone	UTC-8 (Pacific (PST))
• Summer (DST)	UTC-7 (PDT)
ZIP code	96126
Area code	530
GNIS feature IDs	1660231; 2583141
U.S. Geological Survey Geographic Names Information System: Sierraville, California; U.S. Geological Survey Geographic Names Information System: Sierraville, California

Sierraville (Sierra, Spanish for "mountain range" and Ville, French for "town") is a census-designated place^[4] in Sierra County, California, United States.^[2] It is at the southern end of the huge Sierra Valley which is used primarily as pasture and is also at the junction of California State Route 49 and California State Route 89 southwest of Loyalton. Sierraville has a post office with ZIP code 96126.^[5] The post office opened under the name Sierra Valley in 1862 and became known as the Sierraville post office in 1899.^[6] The population was 200 as of the 2010 census.

It is the site of the only traffic signal (a flashing red light) in Sierra County. In the winter of 2007, it was removed after an automobile accident and was replaced in the fall of 2008.