Airport · Mount Vernon, OH
Knox County Airport (4I3)
Knox County Airport (4I3) is a public-use airport in Mount Vernon, OH. Official FAA data: 5,504 ft longest runway, no control tower, Jet A, 1,192 ft elevation. FAA airport data effective 2026-09-03. Jetora shows private-jet empty legs and repositioning flights departing or arriving here, current weather and nearby alternatives. Car parking, lounges and FBO amenities appear only when supplied by the airport or an FBO that has claimed this page — none yet. Runway figures alone do not establish whether a particular aircraft can operate here; operators decide.
- Longest runway
- 5,504 ft
- Elevation
- 1,192 ft
- Control tower
- No
- Fuel on the field
- 100LL avgas, Jet A with additive
- Aircraft parking
- Hangar space, tie-downs
- Attended
- Mon-Fri 0700-1700; Sat-Sun 0900-1700
- On-field services
- Agricultural flying, Flight instruction, Aircraft rental
- Maintenance
- Airframe & engine repair
- Footprint
- 386 acres
- From town
- 4 mi southwest
- Rotating beacon
- White-green
- Location
- Mount Vernon, OH, OH
- Codes
- 4I3 · K4I3