Central Jersey Airport formerly known as Kupper Airport. We are a privately owned, public use airport in Somerset County, New Jersey, located in Hillsborough Township. A full range of services such as 100LL Avgas 24hr self serve, flight school, maintenance and aircraft services are available on-site. The strategic location of the airport brings you all the vital conveniences required to serve the New Jersey-New York Metropolitan area. We are fully dedicated to make recreational or business aviation a pleasant and safe environment. We look forward to your visit.