Afton is a town in Lincoln County, Wyoming, United States. The population was 1,818 at the 2000 census. Afton is home to the world's largest elk horn arch. Spanning 75 feet (23 m) across the four lanes of US Highway 89, the arch consists of 3,011 elk antlers and weighs 15 tons.
As of the census of 2000, there were 1,818 people, 651 households, and 475 families residing in the town. The population density was 530.8 people per square mile (204.6/km²). There were 769 housing units at an average density of 224.5/sq mi (86.6/km²). The racial makeup of the town was 97.19% White, 0.06% African American, 0.39% Native American, 0.06% Asian, 0.94% from other races, and 1.38% from two or more races. Hispanic or Latino of any race were 2.81% of the population.
Public education in the town of Afton is provided by Lincoln County School District #2. Zoned campuses include Afton Elementary School (grades K-3), Osmond Elementary School (grades 4-6), Star Valley Middle School (grades 7-8), and Star Valley High School (grades 9-12).