Below is a list of Harnett County NC zip codes. For your research we have also included Harnett County Area Code, Time Zone, UTC and the local County FIPS Code. Each Harnett County North Carolina zip code has a center Longitude / Latitude point (the Harnett County center is -78.815803527832 / 35.379901885986). For your convenience we have also indicated if that zip code in Harnett County observes Daylight Savings time.