Franklin Park, FL has a population of 1,039 and is the 14,915th largest city in the United States. The population density is 13,129 per sq mi which is 4372% higher than the Florida average and 14391% higher than the national average. The median age in Franklin Park is 25 which is approximately 40% lower than the Florida average of 42. In Franklin Park, 29% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 75% of Franklin Park residents were born in Florida, 18% were born out of state, 0% were born outside of the United States and 7% were foreign born.