Dixon, CA has a population of 19,144 and is the 2,272nd largest city in the United States. The population density is 2,686 per sq mi which is 1056% higher than the California average and 2865% higher than the national average. The median age in Dixon is 34 which is approximately 6% lower than the California average of 36. In Dixon, 58% of the population over 15 years of age are married, 65% speak English and 31% speak Spanish. 64% of Dixon residents were born in California, 17% were born out of state, 0% were born outside of the United States and 19% were foreign born.