Monmouth Municipal (C66)

Airport information: Monmouth, IL, United States. Search for another airport below.

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Location and general information

FAA identifier: C66
FAA site number: 04870.*A
City / state: Monmouth, IL
County: Warren
Time zone: America/Chicago
Reference point: 40°55'46.94" N
90°37'51.99" W
Elevation: 753 ft (surveyed)
Magnetic variation: 3° E (1980)
Status: Operational
Ownership: Public, City of Monmouth
Use: Open to the public
Airport area: 105 acres
From downtown: 2 NM north
Sectional chart: Chicago
Activated: 04/1940

Services and facilities

Control tower: No
Attendance: All months, tue-sun, 0800-1630
Fuel: 100LL, Mogas
Airframe / engine repair: None / none
Transient storage: Hangar, tie-downs
ARTCC: Chicago (ZAU)
Flight service: Kankakee (IKK)
1-800-WX-BRIEF
NOTAM facility: IKK
Wind indicator: Lighted
Beacon: White and green, sunset to sunrise
Segmented circle: Yes
Landing fee: No
Customs: No
Airport manager: Annette St. Ledger
309-734-2141
Last FAA inspection: 08/25/2025

FAA remarks

For CD contact Chicago ARTCC at 630-906-8921.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

FAA identifier: C66
Location: Monmouth, IL, United States
Elevation: 753 ft
Time zone: America/Chicago
Coordinates: 40.9297, -90.63111

Runways

Runway	Size	Surface
03 / 21	2,899 × 60 ft	Asphalt, good

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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