Below is a list of Belvidere NJ zip codes. For your research we have also included Belvidere Area Code, Time Zone, UTC and the local Warren County FIPS Code. Each Belvidere New Jersey zip code has a center Longitude / Latitude point (the Belvidere center is -75.073699951172 / 40.82740020752). For your convenience we have also indicated if that zip code in Belvidere observes Daylight Savings time.