Decatur, city, seat (1891) of Morgan county, northern Alabama, U.S. It lies along the Tennessee River about 25 miles (40 km) southwest of Huntsville. Andrew Jackson gave land grants in the area to soldiers who marched with him to the Battle of New Orleans (January 8, 1815), and in 1820 the city was named to honour Stephen Decatur, the American naval hero of the War of 1812. In 1836 it became the eastern terminus of the Tuscumbia, Courtland and Decatur Railroad, the first U.S. railroad west of the Appalachian Mountains. During the American Civil War the city was the site of the Battle of Decatur (October 1864), when Confederates under General John B. Hood were defeated in an attempt to cross the Tennessee River by Union forces under General Robert S. Granger, and was almost destroyed. It was gradually rebuilt during the Reconstruction period. The present city was formed by the consolidation in 1927 of Decatur and Albany (formerly New Decatur, founded 1886). The city’s growth was stimulated by the Tennessee Valley Authority, which provided power to the area and connected it by inland waterways to the Gulf of Mexico.
Industry is now the basis of the city’s economy, with poultry processing and the manufacture of automotive parts, refrigerators, booster rocket cores, synthetic fibres, and copper tubing being most important. Tourism is also a factor; the city has two historic districts with many preserved buildings. Cook’s Natural Science Museum includes exhibits of local wildlife. Wheeler Lake, an impoundment of the Tennessee River, provides recreational activities; Wheeler National Wildlife Refuge is nearby, and William B. Bankhead National Forest is to the southwest. The Alabama Jubilee Hot-Air Balloon Festival is held annually in May. Decatur is the site of Calhoun Community College (1965). Inc. 1826. Pop. (2000) 53,929; Decatur Metro Area, 145,867; (2010) 55,683; Decatur Metro Area, 153,829.