Ceres, CA has a population of 47,231 and is the 877th largest city in the United States. The population density is 5,048 per sq mi which is 2072% higher than the California average and 5472% higher than the national average. The median age in Ceres is 30 which is approximately 16% lower than the California average of 36. In Ceres, 54% of the population over 15 years of age are married, 42% speak English and 48% speak Spanish. 62% of Ceres residents were born in California, 10% were born out of state, 1% were born outside of the United States and 27% were foreign born.