In April 1929 Essex Airport Corporation was formed by Walter Marvin and six other individuals. The intention of the company was to open an airport to serve Montclair, New Jersey, a town seven miles (11 km) away. The tract of land that Essex Airport Corporation intended for the airport was the Fairfield Dairy Company land that had also been used during WWI as a temporary airfield for the Naval Rifle Range which had been located along the Passaic River in Pine Brook. Some of the early references to airport have the designation “Marvin Airport”, named after Walter Marvin.
Essex County Airport covers an area of 275 acres (111 ha) at an elevation of 172 feet (52 m) above mean sea level. It has two runways with asphalt surfaces: 4/22 is 4,552 by 80 feet (1,387 x 24 m) and 10/28 is 3,719 by 75 feet (1,134 x 23 m).
For the 12-month period ending November 30, 2012, the airport had 74,459 aircraft operations, an average of about 200 per day: 97% general aviation, 1% air taxi and 1% military. Around that time there were 197 aircraft based at this airport: 81% single-engine, 16% multi-engine and 1.5% each jets and helicopters.
The weather station reports are commonly identified as "Caldwell".