Ridgefield Park is a village in Bergen County, in the U.S. state of New Jersey. As of the 2020 United States census, the village's population was 13,224, an increase of 495 (+3.9%) from the 2010 census count of 12,729, which in turn reflected a decline of 144 (−1.1%) from the 12,873 counted in the 2000 census. Of the 564 municipalities in the state, Ridgefield Park is one of only four with a village type of government, though it operates a Walsh Act form of government. Of the four New Jersey villages, Loch Arbour also uses the commission form of government, while Ridgewood operates under the council-manager form, and the Township of South Orange Village operates under a special charter form with many characteristics of village government.

Bergen County is the most populous county in the U.S. state of New Jersey. As of the 2020 United States census, the county's population was 955,732, its highest decennial count ever and an increase of 50,616 (+5.6%) from the 905,116 recorded at the 2010 census, which in turn reflected an increase of 20,998 (2.4%) from the 884,118 counted in the 2000 census. Located in the northeastern corner of New Jersey and its Gateway Region, Bergen County and its many inner suburbs constitute a highly developed part of the New York City metropolitan area, bordering the Hudson River; the George Washington Bridge, which crosses the Hudson, connects Bergen County with Manhattan. The county is part of the North Jersey region of the state.