Mendota, CA has a population of 11,394 and is the 3,561st largest city in the United States. The population density is 3,457 per sq mi which is 1388% higher than the California average and 3716% higher than the national average. The median age in Mendota is 27 which is approximately 26% lower than the California average of 36. In Mendota, 43% of the population over 15 years of age are married, 13% speak English and 87% speak Spanish. 45% of Mendota residents were born in California, 2% were born out of state, 0% were born outside of the United States and 52% were foreign born.