Below is a list of Annandale NJ zip codes. For your research we have also included Annandale Area Code, Time Zone, UTC and the local Hunterdon County FIPS Code. Each Annandale New Jersey zip code has a center Longitude / Latitude point (the Annandale center is -74.885597229004 / 40.650901794434). For your convenience we have also indicated if that zip code in Annandale observes Daylight Savings time.