Laguna Niguel, CA has a population of 64,984 and is the 576th largest city in the United States. The population density is 4,408 per sq mi which is 1797% higher than the California average and 4766% higher than the national average. The median age in Laguna Niguel is 44 which is approximately 22% higher than the California average of 36. In Laguna Niguel, 63% of the population over 15 years of age are married, 77% speak English and 9% speak Spanish. 50% of Laguna Niguel residents were born in California, 28% were born out of state, 2% were born outside of the United States and 20% were foreign born.