Uniontown is an unincorporated community in Crawford County, Arkansas, United States. Henry Howell (1812-1883) was the founder of Uniontown, Arkansas where he farmed until his death on June 27, 1883. He was constable and deputy sheriff. Henry was married to Martha (Low) Howell (1813-1903) known as "Granny Howell" to all. Uniontown is located on Arkansas Highway 220 near the Oklahoma border, 4.5 miles (7.2 km) west-northwest of Cedarville. Uniontown has a post office with ZIP code 72955. Slack-Comstock-Marshall Farm, which is listed on the National Register of Historic Places, is located in the community.