Guerneville, California

Guerneville
Location in Sonoma County and the state of California
Coordinates: 38°30′23″N 122°59′27″W / 38.50639°N 122.99083°W / 38.50639; -122.99083
Country United States
State California
CountySonoma
Area
 • Total
9.879 sq mi (25.587 km2)
 • Land9.709 sq mi (25.147 km2)
 • Water0.170 sq mi (0.440 km2)  1.72%
Elevation
59 ft (18 m)
Population
 (2020)
 • Total
4,552
 • Density468.8/sq mi (181.0/km2)
Time zoneUTC-8 (Pacific)
 • Summer (DST)UTC-7 (PDT)
ZIP code
95446
Area code707
FIPS code06-31470
GNIS feature ID277527

Guerneville (/ˈɡɜːrnvɪl, -nivɪl/) is an unincorporated community and census-designated place (CDP) in the Russian River Valley of Sonoma County, California, United States. As of the 2020 census, Guerneville had a population of 4,552. The town is historically known as a logging community. It was founded by the Guerne family in the 1850s.

In the 21st century, Guerneville is also known for its natural environment, liberal atmosphere, and proximity to wine-tasting and redwood forests.