Willits, CA has a population of 4,848 and is the 6,600th largest city in the United States. The population density is 1,762 per sq mi which is 658% higher than the California average and 1845% higher than the national average. The median age in Willits is 45 which is approximately 26% higher than the California average of 36. In Willits, 50% of the population over 15 years of age are married, 82% speak English and 15% speak Spanish. 69% of Willits residents were born in California, 20% were born out of state, 1% were born outside of the United States and 10% were foreign born.