# Union County Airport (KMRT)

**Union County Airport** (ICAO: KMRT) is a small airport in Marysville, Ohio, United States. It opened in Jul 1967. It has 2 runways; the longest is 4,218 ft (1,286 m).

Web page: https://dromopedia.com/airports/kmrt

## At a glance

- IATA / ICAO: — / KMRT
- FAA: MRT
- Type: Small airport
- Serves: Marysville, Ohio, United States
- Opened: Jul 1967
- Elevation: 1,021 ft / 311 m
- Coordinates: 40.2247, -83.3516
- Runways: 2
- Longest runway: 4,218 ft / 1,286 m
- Instrument procedures: 2 approaches
- Time zone: UTC-5/-4 · America/New_York
- Wikipedia: https://en.wikipedia.org/wiki/Union_County_Airport_(Ohio) (5 languages)
- Wikidata: https://www.wikidata.org/wiki/Q7885600
- Weather station: KMRT
- Ident: KMRT

## Timeline

- Jul 1967: Union County Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 09/27 | 4,218 ft / 1,286 m | 75 ft / 23 m | Asphalt | 083° / 263° | yes |
| 08/26 | 2,522 ft / 769 m | 80 ft / 24 m | Grass | 083° / 263° |  |

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Longest runway | 4,218 ft / 1,286 m | #8,947 of 29,858 | #3,406 in North America | #2,813 in US |
| Elevation | 1,021 ft / 311 m | =17,325 of 43,403 | =7,703 in North America | =6,149 in US |
| Age | Opened 1967 | =5,747 of 15,079 | =4,072 in North America | =3,985 in US |
| Runways | 2 | =715 of 29,978 | =435 in North America | =391 in US |

## Radio frequencies

| Type | Description | MHz |
| --- | --- | --- |
| A/D | COLUMBUS APP/DEP | 120.200 |
| AWOS | AWOS 3 | 119.275 |
| UNIC | CTAF/UNICOM | 122.800 |

## Nearby airports

- [2OA5](https://dromopedia.com/airports/2oa5.md) Fl-Airfield · 2.9 mi / 4.7 km
- [OH93](https://dromopedia.com/airports/oh93.md) Darby Airport · 6.2 mi / 9.9 km
- [82OI](https://dromopedia.com/airports/82oi.md) J-Em Farm Airport · 6.3 mi / 10 km
- [OA51](https://dromopedia.com/airports/oa51.md) Fighter Field Airport · 6.6 mi / 11 km
- [OI85](https://dromopedia.com/airports/oi85.md) Mill Creek Airport · 7.5 mi / 12 km
- [US-0111](https://dromopedia.com/airports/us-0111.md) Boober Airport · 9.2 mi / 15 km

## Sources

- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/kmrt/data