Lawrenceburg is a city in Lawrence County, Tennessee. According to United States Census Bureau in 2010 the population was 10,428. with over 14,000 as of the end of 2013. Lawrenceburg is the county seat of Lawrence County. Lawrenceburg is located southwest of Nashville at the junction of U.S. Routes 43 and 64 and named after War of 1812 American Navy officer James Lawrence.