Fort Jones, CA has a population of 816 and is the 16,473rd largest city in the United States. The population density is 1,355 per sq mi which is 483% higher than the California average and 1395% higher than the national average. The median age in Fort Jones is 37 which is approximately 2% higher than the California average of 36. In Fort Jones, 61% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 70% of Fort Jones residents were born in California, 23% were born out of state, 1% were born outside of the United States and 5% were foreign born.