Knox County Airport

Knox County Airport is five miles southwest of Mount Vernon, in Knox County, Ohio.

Facilities
Knox County Airport covers 386 acre at an elevation of 1,192 feet (363 m). Its one runway, 10/28, is 5,504 x 100 ft (1,678 x 30 m) asphalt.

The airport has a fixed-base operator that sells fuel.

In 2023, the airport announced plans to add hangar space and a new building to house snow removal equipment.

In the year ending August 2, 2023, the airport had 24,150 aircraft operations, average 66 per day: 97% general aviation, 2% air taxi and <1% military. 75 aircraft were then based at the airport: 71 single-engine and 3 multi-engine airplanes and 1 jet.

Accidents and incidents

 * On March 27, 2002, a Robinson R-22 helicopter was substantially damaged while landing at the Knox County Airport. The pilot was attempting to land at the airport after a solo flight. When the aircraft touched down, it bounced, and the pilot lost directional control. The helicopter touched down a second time, began to spin to the left, and the tailboom struck a ground observer in the head. The helicopter then rolled left and came to rest on its side. The pilot recalled that he had applied full power upon the first touchdown on the pavement, "and fell victim to torque and or tail rotor thrust." The probable cause of the accident was found to be the pilot's failure to maintain directional control while landing.
 * On July 28, 2018, a Cessna 172 crashed during landing at the Knox County Airport. The pilot reported that there was smoke in the cockpit while he was trying to land, and the aircraft ignited during landing.