About This Place
Watchung is a Borough in Somerset County, New Jersey, United States. As of the 2010 United States Census, the borough population was 5,801.
Watchung was incorporated as a borough by an Act of the New Jersey Legislature on May 23, 1826, from portions of North Plainfield Township (now Green Brook Township) based on the results of a referendum held on April 20, 1826.
Watchung is located at 40°38′21″N 74°26′37″W / 40.639202°N 74.443715°W / 40.639202; -74.443715 (40.639202, -74.443715).