Airport information
- FAA LID
- IA24
- Coordinates
- 41.7550, -91.7277
- Elevation
- 750 ft MSL
- Magnetic variation
- 2E
- Sectional chart
- CHICAGO
- Airport use
- Private
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- FORT DODGE
- Attendance
- ALL 0800-1700
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1976/11
- Distance from city
- 4 NE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:58 AM | 09:58Z |
| Sunrise | 05:32 AM | 10:32Z |
| Sunset | 08:45 PM | 01:45Z |
| Evening civil twilight Loggable night begins | 09:19 PM | 02:19Z |
Plan a flight from IA24
Night operations
- Airport lighting
- SS-SR
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy SE · 134°
- Pattern
- left (turns left)
- TPA
- 1,800 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy SE at 1,800 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway SE/NW
4,000 ft × 60 ft · ASPH-TURF- Heading
- 134° mag · 136° true
- Heading
- 314° mag · 316° true
| Runway | Length | Your margin |
|---|---|---|
| SE/NW | 4,000 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| CID · Cedar Rapids | VOR-DME | 114.10 | r157° / 8.4 NM |
| IOW · Iowa City | VORTAC | 116.20 | r335° / 15.1 NM |
| DDD · Port City | VOR-DME | 116.50 | r311° / 34.9 NM |
VFR sectional
No published instrument procedures or Chart Supplement for IA24. VFR sectional link above.
Ownership & management
Remarks FAA
- RWY 15/33 - 1400' TURF STOPWAY END OF RWY 33.
- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
- DEAN BERANEK PRESIDENT 563-506-2665
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open IA24 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About IA24
Green Castle Airport (IA24) is an airport in Oxford, IA, at 750 ft MSL. It has 1 runway, the longest 4,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for IA24, refreshed from the Aviation Weather Center and FAA NASR.
Does IA24 have a control tower?
No. Green Castle Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at IA24?
Green Castle Airport has 1 runway; the longest is 4,000 ft. See the Runways tab for headings, surface, and lighting.
Where is IA24?
Green Castle Airport is in Oxford, IA, at an elevation of 750 ft MSL. Coordinates: 41.7550, -91.7277.
Fly out of IA24 often?
Save IA24 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.