Below is a list of Glen Gardner NJ zip codes. For your research we have also included Glen Gardner Area Code, Time Zone, UTC and the local Hunterdon County FIPS Code. Each Glen Gardner New Jersey zip code has a center Longitude / Latitude point (the Glen Gardner center is -74.945098876953 / 40.700698852539). For your convenience we have also indicated if that zip code in Glen Gardner observes Daylight Savings time.