Three Oaks, FL has a population of 3,959 and is the 7,496th largest city in the United States. The population density is 2,465 per sq mi which is 740% higher than the Florida average and 2621% higher than the national average. The median age in Three Oaks is 39 which is approximately 7% lower than the Florida average of 42. In Three Oaks, 62% of the population over 15 years of age are married, 83% speak English and 11% speak Spanish. 28% of Three Oaks residents were born in Florida, 58% were born out of state, 1% were born outside of the United States and 13% were foreign born.