KMRJ · Iowa County Airport

MINERAL POINT, WISCONSIN · SMALL AIRPORT

1,171

Elevation ft

Runways

5,001

Longest ft · 11/29

42.89N

90.24W

Iowa County Airport serves Mineral Point, Wisconsin at 1,171 ft elevation with its longest runway, 11/29, at 5,001 by 75 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 KMRJ in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
11/29	5,001 × 75 ft	asphalt	lit
04/22	3,600 × 60 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 1,171 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)	1,171 ft	2,666 ft	2,234 ft	3,350 ft
Warm day (ISA +10)	2,371 ft	2,900 ft	2,360 ft	3,540 ft
Hot day (ISA +20)	3,571 ft	3,134 ft	2,487 ft	3,730 ft
35°C afternoon	3,852 ft	3,189 ft	2,516 ft	3,775 ft

Planning aid only. Even on a 35°C afternoon the longest runway (11/29, 5,001 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,775 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 KMRJ is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KLNR Tri-County Regional Airport	20 nm N	5,000 ft
KOVS Boscobel Airport	25 nm NW	5,000 ft
KEFT Monroe Municipal Airport	33 nm SE	5,000 ft
KDBQ Dubuque Regional Airport	36 nm SW	6,502 ft
KPDC Prairie Du Chien Municipal Airport	40 nm W	5,000 ft
KMSN Dane County Regional Truax Field	42 nm E	9,006 ft

04Jet A prices and FBOs at KMRJ

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KMRJ, 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 KMRJ or read what a fuel stop actually saves.

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