Knox County Airport is a public use airport located four nautical miles (7 km) southwest of the central business district of Mount Vernon, a city in Knox County, Ohio, United States. It is owned by Knox County Airport Authority.Facilities and aircraftKnox County Airport covers an area of 280acre at an elevation of 1,191 feet (363 m) above mean sea level. It has one runway designated 10/28 with a 5,500 x 100 ft (1,676 x 30 m) asphalt pavement.For the 12-month period ending May 9, 2007, the airport had 20,150 aircraft operations, an average of 55 per day: 97% general aviation, 2% air taxi and <1% military. At that time there were 52 aircraft based at this airport: 92% single-engine, 4% multi-engine and 4% ultralight.
