One segment of 58.30 miles (93.82 km) runs from US 59/US 71 west of Ben Lomond north to US 270 in Mount Ida.

A second segment of 46.09 miles (74.17 km) runs from US 270 west of Mount Ida north to Highway 10 in Danville.

Highway 27 continues northeast to US 270 in Mount Ida, where it terminates.

After Marshall, the route trails north to Highway 14 in Harriet, where it terminates.

The highway was completed to Marshall on March 11, 1954,[6] to Mount Ida on June 27, 1962.,[7] between Hector and Tilly on March 24, 1971,[8] and between Ben Lomond and Mineral Springs on September 29, 1976.

Media related to Arkansas Highway 27 at Wikimedia Commons