San Geronimo, California

San Geronimo is a census-designated place located in the San Geronimo Valley in Marin County, California in the United States. San Geronimo is located 8mi southwest of downtown Novato, at an elevation of 292 feet . The population was 446 at the 2010 census.San Geronimo is the home of the San Geronimo Golf Course.GeographySan Geronimo is located at.According to the United States Census Bureau, the CDP has a total area of 1.5sqmi, all of it land.HistoryPrior to 1877, the place was called Nicasio. The San Geronimo post office opened in 1895, closed in 1910, and re-opened in 1911.Demographics2010The 2010 United States Census reported that San Geronimo had a population of 446. The population density was 295.8 people per square mile (114.2/km²). The racial makeup of San Geronimo was 421 (94.4%) White, 3 (0.7%) African American, 2 (0.4%) Native American, 3 (0.7%) Asian, 3 (0.7%) from other races, and 14 (3.1%) from two or more races. Hispanic or Latino of any race were 21 persons (4.7%).