Claremont, CA has a population of 35,827 and is the 1,179th largest city in the United States. The population density is 2,683 per sq mi which is 1055% higher than the California average and 2862% higher than the national average. The median age in Claremont is 40 which is approximately 10% higher than the California average of 36. In Claremont, 52% of the population over 15 years of age are married, 71% speak English and 13% speak Spanish. 53% of Claremont residents were born in California, 27% were born out of state, 1% were born outside of the United States and 19% were foreign born.