Del Rey, CA has a population of 1,531 and is the 12,566th largest city in the United States. The population density is 1,258 per sq mi which is 441% higher than the California average and 1288% higher than the national average. The median age in Del Rey is 26 which is approximately 27% lower than the California average of 36. In Del Rey, 49% of the population over 15 years of age are married, 15% speak English and 80% speak Spanish. 52% of Del Rey residents were born in California, 8% were born out of state, 0% were born outside of the United States and 40% were foreign born.