Below is a list of Richwood NJ zip codes. For your research we have also included Richwood Area Code, Time Zone, UTC and the local Gloucester County FIPS Code. Each Richwood New Jersey zip code has a center Longitude / Latitude point (the Richwood center is -75.166297912598 / 39.722499847412). For your convenience we have also indicated if that zip code in Richwood observes Daylight Savings time.