Sullivan, Wisconsin
W11 Lake Country
Lake Country (W11) is a non-towered, public-use airport in Sullivan, Wisconsin, at 843 ft MSL. It has 2 runways: 06/24 (4,558 by 50 ft, asphalt), 18/36 (2,300 by 70 ft, turf). CTAF 122.9.
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 W11
- Location
- Sullivan, Wisconsin (Jefferson County). 1 NM SW of the city center
- Elevation
- 843 ft MSL
- Position
- 43.0073° N, 88.6052° W
- Control tower
- No, non-towered
- Sectional chart
- Chicago
- Magnetic variation
- 0° W (1985)
- Fuel
- 100LL
- Ownership
- Privately owned, open to the public
- Attendance
- MON-FRI 0900-1700
2 runways
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 06/24 | 4,558 × 50 ft | Asphalt, good condition | Low intensity |
| 18/36 | 2,300 × 70 ft | Turf, fair condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 06 | Not stated | None listed | None listed | 801 ft | Not listed |
| 24 | Left traffic | None listed | None listed | 500 ft | Not listed |
| 18 | Not stated | None listed | None listed | 500 ft | Not listed |
| 36 | Not stated | None listed | None listed | 650 ft | Not listed |
VHF
Frequencies
- CTAF
- 122.9
- Actvt Lirl Rwy 06/24 - 3 Clicks Ctaf.
Before you go
Brief W11 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Lake Country, 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.