Below is a list of Williston ND zip codes. For your research we have also included Williston Area Code, Time Zone, UTC and the local Williams County FIPS Code. Each Williston North Dakota zip code has a center Longitude / Latitude point (the Williston center is -103.824 / 48.4169). For your convenience we have also indicated if that zip code in Williston observes Daylight Savings time. For more information on Williston North Dakota you will find helpful business links and searches.