San Geronimo, California

San Geronimo
Location in Marin County and the state of California
San Geronimo
Location in the United States
Coordinates: 38°00′48″N 122°39′50″W / 38.01333°N 122.66389°W / 38.01333; -122.66389
Country United States
State California
CountyMarin
Government
 • SupervisorDistrict 4
Dennis Rodoni
 • State senatorMike McGuire (D)
 • AssemblymemberDamon Connolly (D)
 • U. S. rep.Jared Huffman (D)
Area
 • Total
1.508 sq mi (3.91 km2)
 • Land1.508 sq mi (3.91 km2)
 • Water0 sq mi (0 km2)  0%
Elevation
292 ft (89 m)
Population
 (2020)
 • Total
510
 • Density340/sq mi (130/km2)
Time zoneUTC-8 (Pacific)
 • Summer (DST)UTC-7 (PDT)
ZIP code
94963
Area codes415/628
FIPS code06-67070
GNIS feature ID232399

San Geronimo (Spanish: San Gerónimo, meaning "St. Jerome") is a census-designated place (CDP) located in the San Geronimo Valley in Marin County, California in the United States. San Geronimo is bordered by Lagunitas-Forest Knolls to its west and Woodacre to its east. It is 8 miles (13 km) southwest of downtown Novato at an elevation of 292 feet (89 m). The population was 510 at the 2020 census.