Inter County
31D · Irwin, Pennsylvania · Westmoreland County · map
Inter County is a public-use airport, 4 miles west of Irwin, Pennsylvania, 1,250 feet above sea level. Its one runway, E/W, is 1,800 feet of grass.
The airport
- Codes
- FAA 31D
- Kind
- Airport · open to the public · privately owned
- Elevation
- 1,250 feet above sea level
- Control tower
- No control tower
- Attended
- every day, irregular hours
- Parking
- tiedown
- On the chart
- Detroit sectional
- Magnetic variation
- 8W
- In the FAA's files since
- November 1948
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| E/W | 1,800 × 120 ft | Grass, fair |
- Runway E: trees 76 ft high 299 ft from the end
- Runway W: trees 41 ft high 13 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) | 122.9 |
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Irwin from the FAA register
10 aircraft are registered to owners in Irwin, Pennsylvania: 10 piston singles. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Individuals are counted, never named. All aircraft registered in Pennsylvania.
Accidents and incidents at or near this airport NTSB records · 1 since 1982, 0 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- VFR operations only
- Tie down ropes are not supplied.
- Dogleg in runway approximately 15 degreess.
- Runway east/west 235 feet unmkd safety area west end; 281 feet unmkd safety area east end.
- Runway east/west width varies 120-275 feet.
- Runway east marked with yellow cones.
- Runway west marked with yellow cones.
- Ctlng obstruction exceeds a 45 degrees slp.
- Ultralight activity on and in the vicinity of airport.
- Deer on and in vicinity of airport.
- Fence approximately 4 feet high along south side of runway "west" and extds approximately 500 feet into the approach surface.
- Runway east/west 275 feet unmarked safety area west end; 225 feet unmarked safety area east end.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.