Below is a list of Hopatcong NJ zip codes. For your research we have also included Hopatcong Area Code, Time Zone, UTC and the local Sussex County FIPS Code. Each Hopatcong New Jersey zip code has a center Longitude / Latitude point (the Hopatcong center is -74.660301208496 / 40.954898834229). For your convenience we have also indicated if that zip code in Hopatcong observes Daylight Savings time.