Lawrence County is a county in the northern part of the U.S. state of Alabama. As of the 2020 census, the population was 33,073. The county seat is Moulton. The county was named after James Lawrence, a captain in the United States Navy from New Jersey.

Moulton is a city in Lawrence County, Alabama, and is included in the Decatur Metropolitan Area, as well as the Huntsville-Decatur Combined Statistical Area. Although it incorporated in 1819, along with its rival of Courtland, to compete for the honor of county seat, it did not first appear on the U.S. Census rolls until 1900. As of the 2010 census, the population of the city is 3,471, its record high. The city has been the county seat of Lawrence County since 1820. It has been the largest community in the county since the 1920 U.S. Census.