North Fair Oaks, CA has a population of 15,144 and is the 2,812th largest city in the United States. The population density is 12,639 per sq mi which is 5339% higher than the California average and 13851% higher than the national average. The median age in North Fair Oaks is 33 which is approximately 9% lower than the California average of 36. In North Fair Oaks, 47% of the population over 15 years of age are married, 27% speak English and 64% speak Spanish. 40% of North Fair Oaks residents were born in California, 9% were born out of state, 2% were born outside of the United States and 50% were foreign born.