Newark is the largest city in New Jersey, United States, and the county seat of urban Essex County. As of the 2000 Census, the city had a total population of 273,546, making it the largest municipality in New Jersey and the 65th largest city in the U.S. According to the US Census Bureau, the city's 2004 population estimate is 281,402, an increase of.9% from 2000. Newark apartments for rent comparison page shows most up to date rent information on Newark apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.