Below is a list of Keansburg NJ zip codes. For your research we have also included Keansburg Area Code, Time Zone, UTC and the local Monmouth County FIPS Code. Each Keansburg New Jersey zip code has a center Longitude / Latitude point (the Keansburg center is -74.129203796387 / 40.448501586914). For your convenience we have also indicated if that zip code in Keansburg observes Daylight Savings time.