Glen Rock Square Condos Glen Rock are located on Glen Rock Square in Glen Rock New Jersey. The community of Glen Rock Square Condos are upscale townhouses built in approx.2010. Large units with 1 car garages in a private upscale location within Bergen County New Jersey. 9 foot ceilings, wrought iron railings, gleaming hardwood floor are must some of the nice features. Located close the the quaint downtown area of Glen Rock.