Teterboro is a borough in Bergen County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 61, a decrease of 6 (−9.0%) from the 2010 census count of 67, which in turn reflected an increase of 49 (+272.2%) from the 18 counted in the 2000 census. After being ranked as the fourth-smallest municipality, by population, in New Jersey through the 2010 census, the borough is the third-smallest since the merger of Pine Valley into Pine Hill in 2022.

Pine Valley was a borough in Camden County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 21, an increase of 9 (+75.0%) from the 2010 census count of 12, which in turn reflected a decline of 8 (-40.0%) from the 20 counted in the 2000 census. As of the 2020 Census, Pine Valley was the third-smallest municipality by population in New Jersey, with 12 more residents than the nine residing in Tavistock and 14 more than the seven in Walpack Township.