Below is a list of Oldwick NJ zip codes. For your research we have also included Oldwick Area Code, Time Zone, UTC and the local Hunterdon County FIPS Code. Each Oldwick New Jersey zip code has a center Longitude / Latitude point (the Oldwick center is -74.749298095703 / 40.672698974609). For your convenience we have also indicated if that zip code in Oldwick observes Daylight Savings time.