Below is a list of Casselton ND zip codes. For your research we have also included Casselton Area Code, Time Zone, UTC and the local Cass County FIPS Code. Each Casselton North Dakota zip code has a center Longitude / Latitude point (the Casselton center is -97.211402893066 / 46.900501251221). For your convenience we have also indicated if that zip code in Casselton observes Daylight Savings time.