what county is northvale nj
Northvale, New Jersey. Northvale is a borough in Bergen County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 4,640, reflecting an increase of 180 (+4.0%) from the 4,460 counted in the 2000 Census, which had in turn declined by 103 (-2.3%) from the 4,563 counted in the 1990 Census. Contents.