Newark, NJ is a city located in Essex County, New Jersey and has a land area of 24.15 square miles (62.55 km2). The water area for the city is 1.74 square miles or 4.51 km2. There are 20 total unique zip codes in Newark, New Jersey. The area code(s) for Newark is 973/201/862/551/908/732/848.
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