Essex County Airport (IATA: CDW, ICAO: KCDW, FAA LID: CDW), informally "Caldwell Airport", is a public use airport located in Fairfield Township, Essex County, New Jersey, two nautical miles (4 km) north of the central business district of Caldwell, a borough of northwestern Essex County in the U.S. state of New Jersey. It is owned by the Essex County Improvement Authority.