Port Colden is an unincorporated community and census-designated place (CDP) located within Washington Township, in Warren County, New Jersey, United States, that was created as part of the 2010 United States Census. As of the 2010 Census, the CDP's population was 122. The community was named for its location on the Morris Canal and after Cadwallader D. Colden, president of the Morris Canal Company. Geography According to the United States Census Bureau, the CDP had a total area of 0.197 square miles (0.509 km2), all of which was land. Demographics Census 2010 Historic district The Port Colden Historic District was added to the National Register of Historic Places on January 21, 1999. Wineries Vacchiano Farm References Census-designated places in Warren County, New Jersey Washington Township, Warren County, New Jersey