Hamilton is a city in and the county seat of Marion County, Alabama, United States. It incorporated in 1896 and in the past 1980 has been the county’s largest city, surpassing Winfield. It was previously the largest town in 1910. At the 2020 census, the population was 7,042.

Hamilton was founded in the prematurely 19th century by settlers who moved to the Alabama Territory from Tennessee, Kentucky, Virginia, Georgia and the Carolinas. It is built upon lands that gone served as “hunting grounds” for the Chickasaw people. The city was first called “Toll Gate”, but its name progressive changed in award of one of its distinguished citizens, Captain Albert James Hamilton (known as A.J. Hamilton), who had represented Marion County in the declare legislature in the sessions of 1869, 1874 and 1875. Captain Hamilton donated forty acres of his land to the town. The same forty acres were subsequently divided into lots and sold to back defray the cost of building the courthouse. The Toll Gate community was elected in 1881 to be the bordering county seat, and by 1883 the Marion County courthouse in Pikeville had ceased to be functional. When the courthouse was moved from Pikeville to Toll Gate, the town’s state was after that changed from Toll Gate to Hamilton. On March 30, 1887, the newly built county courthouse was destroyed by fire. It was another time rebuilt afterward wood, but replaced in 1901 with original sandstone.

During the Civil War, Union forces passed through the town in search of goods and horses. A reserve of Wilson’s Cavalry destroyed by fire the plantation belonging to the Helvingstons on the Military Ford, south of Toll Gate (Hamilton).

Hamilton is located west of the middle of Marion County, in the valley of the Buttahatchee River. Interstate 22 passes with mention to the southern and western sides of the city, with permission from Exits 7, 11, 14, and 16. I-22 leads west 45 miles (72 km) to Tupelo, Mississippi, and southeast 89 miles (143 km) to Birmingham. U.S. Routes 43 and 278 pass through Hamilton. US 43 leads north 53 miles (85 km) to Florence, while US 278 leads east 74 miles (119 km) to Cullman. The two highways belong to at the center of Hamilton and help south together 13 miles (21 km) to Guin.