Carpinteria, CA has a population of 13,553 and is the 3,083rd largest city in the United States. The population density is 5,237 per sq mi which is 2154% higher than the California average and 5680% higher than the national average. The median age in Carpinteria is 44 which is approximately 21% higher than the California average of 36. In Carpinteria, 56% of the population over 15 years of age are married, 62% speak English and 33% speak Spanish. 52% of Carpinteria residents were born in California, 21% were born out of state, 2% were born outside of the United States and 25% were foreign born.