Temecula, CA has a population of 108,965 and is the 270th largest city in the United States. The population density is 2,924 per sq mi which is 1158% higher than the California average and 3128% higher than the national average. The median age in Temecula is 34 which is approximately 5% lower than the California average of 36. In Temecula, 59% of the population over 15 years of age are married, 78% speak English and 12% speak Spanish. 56% of Temecula residents were born in California, 25% were born out of state, 2% were born outside of the United States and 16% were foreign born.