Lakeland, FL has a population of 102,714 and is the 299th largest city in the United States. The population density is 1,558 per sq mi which is 431% higher than the Florida average and 1620% higher than the national average. The median age in Lakeland is 40 which is approximately 3% lower than the Florida average of 42. In Lakeland, 51% of the population over 15 years of age are married, 85% speak English and 11% speak Spanish. 45% of Lakeland residents were born in Florida, 43% were born out of state, 3% were born outside of the United States and 9% were foreign born.