Franklin, CA has a population of 7,586 and is the 4,888th largest city in the United States. The population density is 3,759 per sq mi which is 1518% higher than the California average and 4049% higher than the national average. The median age in Franklin is 32 which is approximately 11% lower than the California average of 36. In Franklin, 51% of the population over 15 years of age are married, 42% speak English and 41% speak Spanish. 63% of Franklin residents were born in California, 9% were born out of state, 1% were born outside of the United States and 28% were foreign born.