Newfoundland, NJ is a city located in Passaic County, New Jersey and has a land area of 12.59 square miles (32.61 km2). The water area for the city is 1.93 square miles or 5.00 km2. There is one unique zip code in Newfoundland, New Jersey and it is 07435. The area code(s) for Newfoundland is 973/862.
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