Below is a list of Cedar Knolls NJ zip codes. For your research we have also included Cedar Knolls Area Code, Time Zone, UTC and the local Morris County FIPS Code. Each Cedar Knolls New Jersey zip code has a center Longitude / Latitude point (the Cedar Knolls center is -74.449203491211 / 40.823101043701). For your convenience we have also indicated if that zip code in Cedar Knolls observes Daylight Savings time.