Morongo Valley, CA has a population of 3,082 and is the 8,672nd largest city in the United States. The population density is 122 per sq mi which is 47% lower than the California average and 35% higher than the national average. The median age in Morongo Valley is 50 which is approximately 38% higher than the California average of 36. In Morongo Valley, 50% of the population over 15 years of age are married, 88% speak English and 10% speak Spanish. 52% of Morongo Valley residents were born in California, 38% were born out of state, 1% were born outside of the United States and 9% were foreign born.