Below is a list of Topsail Beach NC zip codes. For your research we have also included Topsail Beach Area Code, Time Zone, UTC and the local Onslow County FIPS Code. Each Topsail Beach North Carolina zip code has a center Longitude / Latitude point (the Topsail Beach center is -77.50235748291 / 34.479961395264). For your convenience we have also indicated if that zip code in Topsail Beach observes Daylight Savings time.