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Airports US KMRT
Small Airport
KMRT
KMRT

🇺🇸 Union County Airport

Marysville, US-OH, US 1021 ft America/New_York
Updated Aug 19, 2026

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Union County Airport serves Marysville, US.

The Union County Airport (KMRT) in Marysville, Ohio, is a publicly-owned general aviation facility,,). It is located one mile southeast of Marysville,.

The airport has two runways:

  • Runway 09/27: 4,218 x 75 feet, asphalt surface in fair condition,.
  • Runway 08/26: 2,522 x 80 feet, turf surface in good condition,.

Known uses include pilot instruction, aircraft rental, charter operations, air taxi, freight, and general aviation,. The airport was activated in July 1967,. It does not have a control tower, and does not handle scheduled commercial passenger flights.

*Sources researched: skyvector.com, airnav.com, unioncountyohio.gov, en.wikipedia.org, airportroutes.com*

AirportRoutes · updated Aug 19, 2026

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Where is Union County Airport located?

Union County Airport is located in Marysville, US, at an elevation of 1021 ft. Its IATA code is — and ICAO code is KMRT.