Sweetwater is a town in Beckham and Roger Mills counties in the U.S. state of Oklahoma. It was incorporated in 1998. As of the 2010 census it had a population of 87.
Named for nearby Sweetwater Creek, the town is at the junction of State Highway 30 and State Highway 152. The post office (zip code 73666), was established September 27, 1894.
On May 5, 2007, a tornado, rated on the Enhanced Fujita Scale (EF scale) as EF3, traveled on a path around 100 to 150 yards (91 to 137 m) wide and 7.5 miles (12.1 km) long. It began about 2.5 miles (4.0 km) south of Sweetwater and ended approximately 5 miles (8 km) north of Sweetwater, following State Highway 30. EF3 wind speeds range from 136 to 165 miles per hour (219 to 266 km/h). It severely damaged several buildings in the town, including the church and high school, and destroyed eight homes.