Santa Monica, CA has a population of 92,247 and is the 350th largest city in the United States. The population density is 10,962 per sq mi which is 4182% higher than the California average and 11999% higher than the national average. The median age in Santa Monica is 41 which is approximately 13% higher than the California average of 36. In Santa Monica, 41% of the population over 15 years of age are married, 71% speak English and 11% speak Spanish. 40% of Santa Monica residents were born in California, 35% were born out of state, 2% were born outside of the United States and 23% were foreign born.