Maricopa, CA has a population of 1,115 and is the 14,480th largest city in the United States. The population density is 742 per sq mi which is 219% higher than the California average and 719% higher than the national average. The median age in Maricopa is 31 which is approximately 13% lower than the California average of 36. In Maricopa, 51% of the population over 15 years of age are married, 80% speak English and 12% speak Spanish. 75% of Maricopa residents were born in California, 17% were born out of state, 0% were born outside of the United States and 8% were foreign born.