Saratoga, CA has a population of 30,830 and is the 1,377th largest city in the United States. The population density is 2,396 per sq mi which is 931% higher than the California average and 2545% higher than the national average. The median age in Saratoga is 49 which is approximately 35% higher than the California average of 36. In Saratoga, 75% of the population over 15 years of age are married, 56% speak English and 2% speak Spanish. 39% of Saratoga residents were born in California, 22% were born out of state, 1% were born outside of the United States and 37% were foreign born.