Greencastle, Indiana

KGPC Putnam County Rgnl

Putnam County Rgnl (KGPC) is a non-towered, public-use airport in Greencastle, Indiana, at 842 ft MSL. Its runway is 18/36 (5,002 by 100 ft, asphalt). CTAF 122.8.

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 KGPC, FAA GPC
Location
Greencastle, Indiana (Putnam County). 3 NM SE of the city center
Elevation
842 ft MSL
Position
39.6335° N, 86.8138° W
Control tower
No, non-towered
Sectional chart
St Louis
Magnetic variation
3° W (2005)
Fuel
100LL, Jet A-1+
Ownership
Publicly owned, open to the public
Attendance
Daily 0800-1630

1 runway

Runways

RunwayLength × widthSurfaceEdge lights
18/365,002 × 100 ftAsphalt, excellent conditionMedium intensity

Runway ends and traffic pattern

EndPatternGlide slope lightsInstrumentDisplaced thresholdLanding distance
18Left traffic2-light PAPI, leftNone listedNone listedNot listed
36Left traffic2-light PAPI, leftNone listedNone listedNot listed

VHF

Frequencies

CTAF
122.8
Actvt Mirl Rwy 18/36 - Ctaf; Papi Rwy 18 & 36 Opr Consly.
UNICOM
122.8
Approach / departure
119.05
"Indianapolis"

Weather station

AWOS-3PT GPC
118.125

Before you go

Brief KGPC in Ascent EFB.

Current weather, NOTAMs and the airport diagram for Putnam County Rgnl, in the app on iPhone and iPad.

Get Ascent on the App Store

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.