Pompton Lakes is a borough in Passaic County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 11,127, an increase of 30 from the 2010 census count of 11,097, which in turn reflected an increase of 457 from the 10,640 counted in the 2000 census. Pompton Lakes was established on February 26, 1895, from portions of Pompton Township, based on the results of a referendum held three days earlier.