Mattituck, New York
21N Mattituck
Mattituck (21N) is a non-towered, public-use airport in Mattituck, New York, at 30 ft MSL. Its runway is 01/19 (2,200 by 60 ft, asphalt). 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 21N
- Location
- Mattituck, New York (Suffolk County). 1 NM SE of the city center
- Elevation
- 30 ft MSL
- Position
- 40.9869° N, 72.5191° W
- Control tower
- No, non-towered
- Sectional chart
- New York
- Magnetic variation
- 14° W (1985)
- Ownership
- Privately owned, open to the public
- Attendance
- UNATT
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 01/19 | 2,200 × 60 ft | Asphalt, good condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 01 | Left traffic | None listed | None listed | None listed | Not listed |
| 19 | Left traffic | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
Before you go
Brief 21N in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Mattituck, 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.