Six business routes of Highway 1 currently exist, with one spur route. Each of the routes is a former alignment of Highway 1, which is common practice.
Arkansas Highway 1 Business is a business route in DeWitt. It is in length.
Arkansas Highway 1 Spur is a spur route in St. Charles. Known locally as River View Drive, the route is in length. The route ends at the location of the Battle of Saint Charles on the White River.
Arkansas Highway 1 Business is a business route in Marianna. It is in length, and two-lane undivided.
Arkansas Highway 1 Business is a business route in Forrest City. It is in length. The highway runs near Forrest City High School.
Arkansas Highway 1 Business is a business route (formerly signed as AR 1C, a city route) in Vanndale. It is in length.
Arkansas Highway 1 Business is a business route in Cherry Valley. It is in length.
Arkansas Highway 1 Business is a business route serving downtown Jonesboro. It is in length and known as Harrisburg Road.