what county is closter nj in
Closter /ËkloÊstÉr/ is a borough in Bergen County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 8,373, reflecting a decline of 10 (-0.1%) from the 8,383 counted in the 2000 Census, which had in turn increased by 289 (+3.6%) from the 8,094 counted in the 1990 Census. 1 History.