KMIW · Marshalltown Municipal Airport

MARSHALLTOWN, IOWA · SMALL AIRPORT

974

Elevation ft

Runways

5,007

Longest ft · 13/31

42.11N

92.92W

Marshalltown Municipal Airport serves Marshalltown, Iowa at 974 ft elevation with its longest runway, 13/31, at 5,007 by 100 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open KMIW in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
13/31	5,007 × 100 ft	asphalt	lit
18/36	2,759 × 50 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 974 ft is about 13°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 13°C)	974 ft	2,628 ft	2,213 ft	3,319 ft
Warm day (ISA +10)	2,174 ft	2,862 ft	2,339 ft	3,509 ft
Hot day (ISA +20)	3,374 ft	3,096 ft	2,466 ft	3,699 ft
35°C afternoon	3,608 ft	3,142 ft	2,491 ft	3,736 ft

Planning aid only. Even on a 35°C afternoon the longest runway (13/31, 5,007 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,736 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at KMIW is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KGGI Grinnell Regional Airport	26 nm S	5,200 ft
KTNU Newton Municipal Airport	27 nm S	5,600 ft
KAMW Ames Municipal Airport	32 nm W	5,701 ft
KALO Waterloo Regional Airport	35 nm NE	8,399 ft
KIKV Ankeny Regional Airport	38 nm SW	5,500 ft
KPEA Pella Municipal Airport	43 nm S	5,402 ft

04Jet A prices and FBOs at KMIW

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KMIW, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KMIW or read what a fuel stop actually saves.

All Iowa airports · Airport directory · Open JetDesk