Sausalito, CA has a population of 7,115 and is the 5,125th largest city in the United States. The population density is 4,019 per sq mi which is 1629% higher than the California average and 4336% higher than the national average. The median age in Sausalito is 54 which is approximately 50% higher than the California average of 36. In Sausalito, 52% of the population over 15 years of age are married, 86% speak English and 4% speak Spanish. 43% of Sausalito residents were born in California, 43% were born out of state, 1% were born outside of the United States and 14% were foreign born.