Resident Population in Lauderdale County, TN was 24.61000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Lauderdale County, TN reached a record high of 27.72200 in January of 2010 and a record low of 20.27100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lauderdale County, TN - last updated from the United States Federal Reserve on May of 2024.