what county is ridgefield, nj in?
Ridgefield Park, NJ. Online Offers. Ridgefield Park is a village in Bergen County, New Jersey, United States. The population was 12,729 at the 2010 United States Census. Of 566 municipalities statewide, Ridgefield Park is only one of three with a village type of government in New Jersey, along with Loch Arbour and Ridgewood.