San Juan Bautista, CA has a population of 2,327 and is the 10,203rd largest city in the United States. The population density is 3,272 per sq mi which is 1308% higher than the California average and 3511% higher than the national average. The median age in San Juan Bautista is 39 which is approximately 8% higher than the California average of 36. In San Juan Bautista, 50% of the population over 15 years of age are married, 74% speak English and 24% speak Spanish. 77% of San Juan Bautista residents were born in California, 13% were born out of state, 1% were born outside of the United States and 9% were foreign born.