Iowa County Airport (ICAO: KMRJ, FAA LID: MRJ) is a county-owned public-use airport located three nautical miles (6 km) northwest of the central business district of Mineral Point, a city in Iowa County, Wisconsin, United States.^[1] It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2021–2025, in which it is categorized as a local general aviation facility.^[2]

Quick Facts Summary, Airport type ...

Iowa County Airport
IATA: none ICAO: KMRJ FAA LID: MRJ
Summary
Airport type	Public
Owner	Iowa County
Serves	Mineral Point, Wisconsin
Time zone	CST (UTC−06:00)
• Summer (DST)	CDT (UTC−05:00)
Elevation AMSL	1,171 ft / 357 m
Coordinates	42°53′13″N 090°14′12″W
Map
MRJ Location of airport in Wisconsin Show map of Wisconsin MRJ MRJ (the United States) Show map of the United States
Runways
Direction Length Surface ft m 11/29 5,001 1,524 Asphalt 4/22 3,600 1,097 Asphalt
Statistics
Aircraft operations (2021) 6,750 Based aircraft (2024) 31
Source: Federal Aviation Administration[1]

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Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this facility is assigned MRJ by the FAA but has no designation from the IATA^[3] (which assigned MRJ to Marcala Airport in Marcala, Honduras).^[4]

Iowa County Airport covers an area of 383 acres (155 ha) at an elevation of 1,171 feet (357 m) above mean sea level. It has two runways with asphalt surfaces: the primary runway 11/29 is 5,001 by 75 feet (1,524 x 23 m) and the crosswind runway 4/22 is 3,600 by 60 feet (1,097 x 18 m).^[1]

For the 12-month period ending April 22, 2021, the airport had 6,750 aircraft operations, an average of 18 per day: 82% general aviation, 11% air taxi and 7% military. In April 2024, there were 31 aircraft based at this airport: 26 single-engine, 2 multi-engine and 3 helicopter.^[1]

• List of airports in Wisconsin