North Bergen is a township in the northern part of Hudson County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 63,361, an increase of 2,588 (+4.3%) from the 2010 census count of 60,773, which in turn reflected an increase of 2,681 (+4.6%) from the 58,092 counted in the 2000 census. The township was incorporated in 1843. It was much diminished in territory by a series of secessions. Situated on the Hudson Palisades, it is one of the hilliest municipalities in the United States. Like neighboring North Hudson communities, North Bergen is among those places in the country with the highest population density.