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is a borough in Passaic County, New Jersey, United States. As of the United States 2000 Census, the borough population was 5,779.
Prospect Park was formed as a borough by an Act of the New Jersey Legislature on March 13, 1901, from portions of the now-defunct Manchester Township.
According to the United States Census Bureau, the borough has a total area of 0.5 square miles (1.2 km