Below is a list of Port Jefferson NY zip codes. For your research we have also included Port Jefferson Area Code, Time Zone, UTC and the local Suffolk County FIPS Code. Each Port Jefferson New York zip code has a center Longitude / Latitude point (the Port Jefferson center is -73.05460357666 / 40.948398590088). For your convenience we have also indicated if that zip code in Port Jefferson observes Daylight Savings time.