Plant City, FL has a population of 36,830 and is the 1,138th largest city in the United States. The population density is 1,349 per sq mi which is 359% higher than the Florida average and 1389% higher than the national average. The median age in Plant City is 36 which is approximately 13% lower than the Florida average of 42. In Plant City, 55% of the population over 15 years of age are married, 71% speak English and 26% speak Spanish. 54% of Plant City residents were born in Florida, 27% were born out of state, 4% were born outside of the United States and 14% were foreign born.