Reference only — not for real-world navigation.
KMIW
Marshalltown Municipal Airport · Marshalltown
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
974 ft / 297 m
Transition Altitude
18,000 ft
Primary Channel
A/D 120.90 MHz (WATERLOO APP/DEP)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Marshalltown Municipal Airport (KMIW), located in Marshalltown, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 2 active runways with a maximum elevation of 974 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Marshalltown Municipal Airport
ICAO / IATA
KMIW / MIW
Municipality
Marshalltown
Country
Region
US-IA — Iowa
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
974 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 12 / 30
LIGHTED
Runway Length: 5,006 ft / 1,526 m
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 127.2° / 307.2°
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 127.2° / 307.2°
RWY 12 (127.2°)
No ILS / Visual Only
RWY 30 (307.2°)
No ILS / Visual Only
Runway 18 / 36
LIGHTED
Runway Length: 2,806 ft / 855 m
Runway Width: 50 ft / 15 m
Surface Type: Asphalt
Heading: 183.5° / 3.5°
Runway Width: 50 ft / 15 m
Surface Type: Asphalt
Heading: 183.5° / 3.5°
RWY 18 (183.5°)
No ILS / Visual Only
RWY 36 (3.5°)
No ILS / Visual Only
A/D WATERLOO APP/DEP
120.90 MHz
ASOS ASOS
128.32 MHz
CLD WATERLOO CLNC DEL
120.90 MHz
UNIC CTAF/UNICOM
122.80 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026