La Quinta, CA has a population of 39,801 and is the 1,038th largest city in the United States. The population density is 1,129 per sq mi which is 341% higher than the California average and 1146% higher than the national average. The median age in La Quinta is 46 which is approximately 28% higher than the California average of 36. In La Quinta, 63% of the population over 15 years of age are married, 75% speak English and 20% speak Spanish. 53% of La Quinta residents were born in California, 31% were born out of state, 1% were born outside of the United States and 15% were foreign born.