Below is a list of Seabrook NH zip codes. For your research we have also included Seabrook Area Code, Time Zone, UTC and the local Rockingham County FIPS Code. Each Seabrook New Hampshire zip code has a center Longitude / Latitude point (the Seabrook center is -70.87329864502 / 42.893600463867). For your convenience we have also indicated if that zip code in Seabrook observes Daylight Savings time.