Fresno, CA has a population of 513,807 and is the 34th largest city in the United States. The population density is 4,524 per sq mi which is 1847% higher than the California average and 4894% higher than the national average. The median age in Fresno is 30 which is approximately 16% lower than the California average of 36. In Fresno, 46% of the population over 15 years of age are married, 57% speak English and 29% speak Spanish. 67% of Fresno residents were born in California, 11% were born out of state, 1% were born outside of the United States and 21% were foreign born.