Oakland is a borough in Bergen County, in the U.S. state of New Jersey and a suburb of New York City. As of the 2020 United States census, the borough's population was 12,748, a decrease of six people from the 2010 census count of 12,754, which in turn reflected an increase of 288 from the 12,466 counted in the 2000 census. Oakland was incorporated as a borough by an act of the New Jersey Legislature on April 8, 1902, from portions of Franklin Township.