Empire, CA has a population of 4,379 and is the 7,028th largest city in the United States. The population density is 2,740 per sq mi which is 1079% higher than the California average and 2924% higher than the national average. The median age in Empire is 34 which is approximately 7% lower than the California average of 36. In Empire, 51% of the population over 15 years of age are married, 52% speak English and 44% speak Spanish. 61% of Empire residents were born in California, 17% were born out of state, 0% were born outside of the United States and 22% were foreign born.