Trion is a town in Chattooga County, Georgia, United States. The population was 1,960 at the 2020 census, down from 1,827 at the 2010 census. Trion is the second-largest incorporated community in Chattooga County, which has a population of approximately 26,000. Trion is known as the denim capital of the world because of the Mount Vernon manufacturing plant, which employs about 4,000 people.