is a borough in Bergen County, New Jersey, United States. As of the United States 2000 Census, the borough population was 5,745.
Woodcliff Lake is also the name of the reservoir that lies primarily within the borough, with a small part of it located in neighboring Hillsdale.
The borough is an upscale New York City suburb with most houses on lots of at least .
It was the world headquarters of Ingersoll Rand until they moved in 2004 and its property was taken over by the North American headquarters of BMW. It is the corporate headquarters of Perillo Tours, which consists of an elaborate Italian palace type structure where Richard Nixon had an office after his Presidency.
phenomenon sweeping through Bergen County at the time, from parts of Orvil Township and Washington Township, based on the results of a referendum held three days earlier. On March 1, 1910, after the creation of the reservoir, the name of the borough was changed to Woodcliff Lake, to match the name of the post office. In this era prior to ZIP codes, two post offices in a state could not have the same name, and there was already a "Woodcliff" in Hudson County. On January 1, 1956 and again on July 1, 1958, Woodcliff Lake exchanged sections of land with Park Ridge. On October 13, 1960 portions were exchanged with Hillsdale.
Woodcliff Lake has many historic houses and buildings, some dating from the 1700s. The best example of this is probably the Wortendyke Barn, a colonial-era barn and all its implements that has been preserved as a Bergen County Historic Site. Many other old buildings are also present, but are likely to have been modified through the years. The borough has seen intense development over the past fifty years, as virtually all areas available for construction have been developed.