La Puente, CA has a population of 40,384 and is the 1,025th largest city in the United States. The population density is 11,609 per sq mi which is 4895% higher than the California average and 12713% higher than the national average. The median age in La Puente is 33 which is approximately 8% lower than the California average of 36. In La Puente, 48% of the population over 15 years of age are married, 20% speak English and 69% speak Spanish. 54% of La Puente residents were born in California, 4% were born out of state, 1% were born outside of the United States and 41% were foreign born.