Bret Harte, CA has a population of 5,315 and is the 6,192nd largest city in the United States. The population density is 9,660 per sq mi which is 4057% higher than the California average and 10562% higher than the national average. The median age in Bret Harte is 24 which is approximately 33% lower than the California average of 36. In Bret Harte, 43% of the population over 15 years of age are married, 13% speak English and 85% speak Spanish. 55% of Bret Harte residents were born in California, 3% were born out of state, 1% were born outside of the United States and 41% were foreign born.