Temescal Valley, CA has a population of 24,797 and is the 1,752nd largest city in the United States. The population density is 1,282 per sq mi which is 452% higher than the California average and 1315% higher than the national average. The median age in Temescal Valley is 39 which is approximately 7% higher than the California average of 36. In Temescal Valley, 65% of the population over 15 years of age are married, 71% speak English and 18% speak Spanish. 60% of Temescal Valley residents were born in California, 21% were born out of state, 3% were born outside of the United States and 17% were foreign born.