Stewartsville Map
Stewartsville is an unincorporated area within Greenwich Township in Warren County, New Jersey, United States. The area is served as United States Postal Service ZIP code 08886.
As of the United States 2000 Census, the population for ZIP Code Tabulation Area 08886 was 4,854.
The Kennedy House and Mill, located on Route 173 is listed on the National Register of Historic Places (as Reference #: 96000552).
Nearby cities include Nazareth, Clinton, High Bridge, Frenchtown, Port Murray.