Whittier, CA has a population of 86,630 and is the 384th largest city in the United States. The population density is 5,914 per sq mi which is 2445% higher than the California average and 6427% higher than the national average. The median age in Whittier is 36 which is approximately 1% higher than the California average of 36. In Whittier, 52% of the population over 15 years of age are married, 58% speak English and 37% speak Spanish. 72% of Whittier residents were born in California, 9% were born out of state, 1% were born outside of the United States and 18% were foreign born.