Greenville, FL has a population of 919 and is the 15,664th largest city in the United States. The population density is 703 per sq mi which is 139% higher than the Florida average and 675% higher than the national average. The median age in Greenville is 36 which is approximately 13% lower than the Florida average of 42. In Greenville, 39% of the population over 15 years of age are married, 93% speak English and 3% speak Spanish. 81% of Greenville residents were born in Florida, 13% were born out of state, 0% were born outside of the United States and 5% were foreign born.