East Rancho Dominguez, CA has a population of 15,887 and is the 2,693rd largest city in the United States. The population density is 19,327 per sq mi which is 7450% higher than the California average and 21232% higher than the national average. The median age in East Rancho Dominguez is 29 which is approximately 20% lower than the California average of 36. In East Rancho Dominguez, 45% of the population over 15 years of age are married, 23% speak English and 77% speak Spanish. 57% of East Rancho Dominguez residents were born in California, 6% were born out of state, 1% were born outside of the United States and 37% were foreign born.