Sky Lake, FL has a population of 6,233 and is the 5,609th largest city in the United States. The population density is 4,942 per sq mi which is 1583% higher than the Florida average and 5354% higher than the national average. The median age in Sky Lake is 36 which is approximately 13% lower than the Florida average of 42. In Sky Lake, 44% of the population over 15 years of age are married, 50% speak English and 40% speak Spanish. 33% of Sky Lake residents were born in Florida, 30% were born out of state, 11% were born outside of the United States and 26% were foreign born.