Spring Hill, FL has a population of 102,929 and is the 297th largest city in the United States. The population density is 1,720 per sq mi which is 486% higher than the Florida average and 1799% higher than the national average. The median age in Spring Hill is 45 which is approximately 7% higher than the Florida average of 42. In Spring Hill, 60% of the population over 15 years of age are married, 86% speak English and 10% speak Spanish. 26% of Spring Hill residents were born in Florida, 62% were born out of state, 4% were born outside of the United States and 8% were foreign born.