Greenville, Kentucky
M21 Muhlenberg County
Muhlenberg County (M21) is a non-towered, public-use airport in Greenville, Kentucky, at 428.2 ft MSL. Its runway is 06/24 (4,999 by 75 ft, asphalt). CTAF 123.0.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA M21
- Location
- Greenville, Kentucky (Muhlenberg County). 2 NM NE of the city center
- Elevation
- 428.2 ft MSL
- Position
- 37.2262° N, 87.1564° W
- Control tower
- No, non-towered
- Sectional chart
- St Louis
- Magnetic variation
- 3° W (2010)
- Fuel
- 100LL, Jet A+
- Ownership
- Publicly owned, open to the public
- Attendance
- MON-FRI 0800-1700
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 06/24 | 4,999 × 75 ft | Asphalt, good condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 06 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
| 24 | Left traffic | 2-light PAPI, left | None listed | 400 ft | 4,600 ft |
VHF
Frequencies
- CTAF
- 123.0
- Actvt Reil Rwy 06 & 24; Papi Rwy 06 & 24; Mirl Rwy 06/24 - Ctaf.
- UNICOM
- 123.0
- Approach / departure
- 118.1
- "Campbell"
Weather station
- AWOS-3 M21
- 120.45
Before you go
Brief M21 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Muhlenberg County, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.