Moraga, CA has a population of 16,977 and is the 2,526th largest city in the United States. The population density is 1,794 per sq mi which is 672% higher than the California average and 1880% higher than the national average. The median age in Moraga is 43 which is approximately 21% higher than the California average of 36. In Moraga, 60% of the population over 15 years of age are married, 79% speak English and 3% speak Spanish. 55% of Moraga residents were born in California, 28% were born out of state, 2% were born outside of the United States and 14% were foreign born.