Rush Springs is a town in Grady County, Oklahoma, United States. The population was 997 at the 2020 census, a 19% decrease from 2010. The town promotes itself as the "Watermelon Capital of the World." The community's largest event is the annual Rush Springs Watermelon Festival, which attracts about 30,000 people each year. They consume about 50,000 pounds of watermelon during this event.