Lake Mack-Forest Hills, FL has a population of 541 and is the 19,085th largest city in the United States. The population density is 112 per sq mi which is 62% lower than the Florida average and 23% higher than the national average. The median age in Lake Mack-Forest Hills is 53 which is approximately 26% higher than the Florida average of 42. In Lake Mack-Forest Hills, 60% of the population over 15 years of age are married, 94% speak English and 0% speak Spanish. 41% of Lake Mack-Forest Hills residents were born in Florida, 59% were born out of state, 0% were born outside of the United States and 0% were foreign born.