Lexington is a town in Lauderdale County, Alabama, United States. It is part of the Florence - Muscle Shoals Metropolitan Statistical Area known as "The Shoals". It incorporated in 1959. As of the 2010 census, the population of the town is 735, down from 840 in 2000. The current mayor of Lexington is Sandra Killen-Burroughs.
Lexington is located at 34°57′58″N 87°22′22″W (34.966115, -87.372892).
According to the U.S. Census Bureau, the town has a total area of 3.2 square miles (8.3 km2), all land.
As of the census of 2000, there were 840 people, 364 households, and 244 families residing in the town. The population density was 261.5 people per square mile (101.0/km2). There were 394 housing units at an average density of 122.6 per square mile (47.4/km2). The racial makeup of the town was 99.29% White, 0.24% Native American, and 0.48% from two or more races.