Morgan Hill, CA has a population of 41,839 and is the 979th largest city in the United States. The population density is 3,277 per sq mi which is 1310% higher than the California average and 3517% higher than the national average. The median age in Morgan Hill is 38 which is approximately 5% higher than the California average of 36. In Morgan Hill, 62% of the population over 15 years of age are married, 71% speak English and 18% speak Spanish. 62% of Morgan Hill residents were born in California, 20% were born out of state, 1% were born outside of the United States and 18% were foreign born.