Wilmington-Clinton County Chamber of Commerce Public Agency/Board Hot Deals Marketspace Narrow search by: Keyword: Results Found: 2 View On Map new search Sort by: A-Z Print Clinton County Regional Planning Commission 69 N. South Street Wilmington, OH 45177 Map (937) 382-3582 Clinton County Port Authority The Clinton County Port Authority operates and manages over 1,900 acres surrounding the two-runway, fully functional Part 139 airport. Wilmington Air Park 1113 Airport Road Wilmington, OH 45177 Map (937) 655-7040