Below is a list of Lawrenceville NJ zip codes. For your research we have also included Lawrenceville Area Code, Time Zone, UTC and the local Mercer County FIPS Code. Each Lawrenceville New Jersey zip code has a center Longitude / Latitude point (the Lawrenceville center is -74.764198303223 / 40.220199584961). For your convenience we have also indicated if that zip code in Lawrenceville observes Daylight Savings time.