31D — Inter County Airport, Irwin, PA

Non-ToweredIrwin, PA • ICAO: K31D • 1,250' MSL

31D WeatherLive METAR & TAF

31D has 1 runway. The longest is E/W at 1,800 ft × 120 ft (turf/dirt).

E/WNo runway lights1,800 ft × 120 ftTurf/dirt

FAA NASR data, cycle 2026-09-03

31D field elevation is 1,250 ft MSL. The standard traffic pattern altitude at 31D is 2,250 ft MSL (1,000 ft AGL).

Field elevation1,250 ft MSL

Pattern altitude2,250 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

CTAF 122.9 MHz — 31D is non-towered; self-announce position and intentions on CTAF.

CTAF122.9

Check K31D against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, 31D is a non-towered airport. The CTAF frequency is 122.9 MHz.

31D has 1 runway (E/W). The longest runway is 1,800 feet.

31D uses the standard traffic pattern altitude of 1,000 feet AGL — about 2,250 feet MSL at a field elevation of 1,250 feet.

31D (Inter County Airport) has a field elevation of 1,250 feet MSL.

31D (Inter County Airport) is located in Irwin, PA.