Below is a list of Peapack NJ zip codes. For your research we have also included Peapack Area Code, Time Zone, UTC and the local Somerset County FIPS Code. Each Peapack New Jersey zip code has a center Longitude / Latitude point (the Peapack center is -74.671798706055 / 40.714199066162). For your convenience we have also indicated if that zip code in Peapack observes Daylight Savings time.