Madison, Wisconsin
KMSN Dane County Rgnl/Truax Fld
Dane County Rgnl/Truax Fld (KMSN) is a towered, public-use airport in Madison, Wisconsin, at 886.6 ft MSL. It has 3 runways: 03/21 (7,200 by 150 ft, concrete), 14/32 (5,846 by 150 ft, concrete), 18/36 (9,006 by 150 ft, concrete). CTAF 119.3.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- ICAO KMSN, FAA MSN
- Location
- Madison, Wisconsin (Dane County). 5 NM NE of the city center
- Elevation
- 886.6 ft MSL
- Position
- 43.1399° N, 89.3375° W
- Control tower
- Yes (ATCT-TRACON)
- Sectional chart
- Chicago
- Magnetic variation
- 3° W (2020)
- Fuel
- 100LL, Jet A, A++
- Ownership
- Publicly owned, open to the public
- Attendance
- Daily ALL
3 runways
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 03/21 | 7,200 × 150 ft | Concrete, good condition | High intensity |
| 14/32 | 5,846 × 150 ft | Concrete, good condition | High intensity |
| 18/36 | 9,006 × 150 ft | Concrete, fair condition | High intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 03 | Not stated | 4-light PAPI, left | None listed | 431 ft | 6,770 ft |
| 21 | Not stated | 4-light PAPI, left | ILS/DME | None listed | 7,015 ft |
| 14 | Left traffic | 4-light PAPI, left | None listed | 477 ft | 5,369 ft |
| 32 | Left traffic | 4-light PAPI, left | None listed | None listed | 5,846 ft |
| 18 | Left traffic | 4-light PAPI, left | ILS/DME | 400 ft | 8,606 ft |
| 36 | Left traffic | 4-light PAPI, left | ILS/DME | 1,001 ft | 8,006 ft |
VHF
Frequencies
- ATIS
- 124.65
- "Madison". Hours 0600-2300
- CTAF
- 119.3
- UNICOM
- 122.95
- Tower
- 119.3
- "Madison". Hours 0600-2300
- Ground
- 121.9
- "Madison". Hours 0600-2300
- Clearance delivery
- 121.625
- "Madison". Hours 0600-2300
- Approach / departure
- 120.1
- "Madison". Sector EAST
- Approach / departure
- 135.45
- "Madison". Sector WEST
Weather station
- ASOS MSN
- No frequency listed
Before you go
Brief KMSN in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Dane County Rgnl/Truax Fld, 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.