Lakeland, TN has a population of 12,541 and is the 3,300th largest city in the United States. The population density is 533 per sq mi which is 248% higher than the Tennessee average and 489% higher than the national average. The median age in Lakeland is 39 which is approximately 1% higher than the Tennessee average of 39. In Lakeland, 66% of the population over 15 years of age are married, 91% speak English and 3% speak Spanish. 58% of Lakeland residents were born in Tennessee, 34% were born out of state, 1% were born outside of the United States and 7% were foreign born.