Grenelefe, FL has a population of 1,647 and is the 12,152nd largest city in the United States. The population density is 410 per sq mi which is 39% higher than the Florida average and 352% higher than the national average. The median age in Grenelefe is 40 which is approximately 4% lower than the Florida average of 42. In Grenelefe, 61% of the population over 15 years of age are married, 89% speak English and 7% speak Spanish. 48% of Grenelefe residents were born in Florida, 45% were born out of state, 1% were born outside of the United States and 6% were foreign born.