Below is a list of Ewing NJ zip codes. For your research we have also included Ewing Area Code, Time Zone, UTC and the local Mercer County FIPS Code. Each Ewing New Jersey zip code has a center Longitude / Latitude point (the Ewing center is -74.802200317383 / 40.263801574707). For your convenience we have also indicated if that zip code in Ewing observes Daylight Savings time.