Richfield, CA has a population of 225 and is the 23,927th largest city in the United States. The population density is 411 per sq mi which is 77% higher than the California average and 354% higher than the national average. The median age in Richfield is 46 which is approximately 28% higher than the California average of 36. In Richfield, 71% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 78% of Richfield residents were born in California, 20% were born out of state, 1% were born outside of the United States and 0% were foreign born.