Below is a list of South Amboy NJ zip codes. For your research we have also included South Amboy Area Code, Time Zone, UTC and the local Middlesex County FIPS Code. Each South Amboy New Jersey zip code has a center Longitude / Latitude point (the South Amboy center is -74.286003112793 / 40.483798980713). For your convenience we have also indicated if that zip code in South Amboy observes Daylight Savings time.