Wilmington Air Park is a public-use airport located two nautical miles (3.7 km) southeast of the central business district of Wilmington, a city in Clinton County, Ohio, United States. While DHL had privately owned the property while operating from the facility, the company agreed to donate the airfield to the Clinton County Port Authority.

Wilmington is a city in and the county seat of Clinton County, Ohio, United States. The population was 12,664 at the 2020 census. It is the principal city of the Wilmington micropolitan area, which includes all of Clinton County and is part of the greater Cincinnati–Wilmington–Maysville combined statistical area.