Ferndale, CA has a population of 1,419 and is the 13,025th largest city in the United States. The population density is 1,382 per sq mi which is 495% higher than the California average and 1426% higher than the national average. The median age in Ferndale is 49 which is approximately 37% higher than the California average of 36. In Ferndale, 59% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 77% of Ferndale residents were born in California, 19% were born out of state, 1% were born outside of the United States and 3% were foreign born.