Sweet Water is a town in Marengo County, Alabama, United States.

It was founded during the 1840s and named for Sweet Water Creek, which runs through a section of the community.

[4] Sweet Water is located in southern Marengo County at 32°05′51″N 87°52′03″W / 32.09737°N 87.86751°W / 32.09737; -87.86751 and has an elevation of 184 feet (56 m).

According to the U.S. Census Bureau, the town of Sweet Water has a total area of 2.4 square miles (6.2 km2), all of it recorded as land.

The racial makeup of the town was 91.1% White, 7.8% Black or African American, and 1.2% from some other races.