Lakeland is a city in Shelby County, Tennessee, United States, and a suburb of Memphis. The population was 12,430 at the 2010 census. According to the United States Census Bureau, the city has a total area of 18.0square miles (47Square kilometers), of which 17.6square miles (46Square kilometers) is land and 0.4square miles (1.0Square kilometer) (2.33%) is water. Current population from the 2010 census is 12,430. As of the census of 2000, there were 6,862 people, 2,748households, and 2,025families residing in the city. The population density was 389.5people per square mile (150.4Square kilometers). There were 2,904 housing units at an average density of 164.8per square mile (63.6Square kilometers).