Below is a list of Holly Ridge NC zip codes. For your research we have also included Holly Ridge Area Code, Time Zone, UTC and the local Onslow County FIPS Code. Each Holly Ridge North Carolina zip code has a center Longitude / Latitude point (the Holly Ridge center is -77.5024 / 34.48). For your convenience we have also indicated if that zip code in Holly Ridge observes Daylight Savings time. For more information on Holly Ridge North Carolina you will find helpful business links and searches.