La Mirada, CA has a population of 49,130 and is the 837th largest city in the United States. The population density is 6,281 per sq mi which is 2603% higher than the California average and 6832% higher than the national average. The median age in La Mirada is 39 which is approximately 8% higher than the California average of 36. In La Mirada, 56% of the population over 15 years of age are married, 57% speak English and 26% speak Spanish. 62% of La Mirada residents were born in California, 13% were born out of state, 1% were born outside of the United States and 24% were foreign born.