Gibsonton, FL has a population of 17,916 and is the 2,417th largest city in the United States. The population density is 1,399 per sq mi which is 241% higher than the Florida average and 1444% higher than the national average. The median age in Gibsonton is 31 which is approximately 25% lower than the Florida average of 42. In Gibsonton, 48% of the population over 15 years of age are married, 67% speak English and 27% speak Spanish. 45% of Gibsonton residents were born in Florida, 35% were born out of state, 4% were born outside of the United States and 16% were foreign born.