Below is a list of Richardton ND zip codes. For your research we have also included Richardton Area Code, Time Zone, UTC and the local Stark County FIPS Code. Each Richardton North Dakota zip code has a center Longitude / Latitude point (the Richardton center is -102.31500244141 / 46.883701324463). For your convenience we have also indicated if that zip code in Richardton observes Daylight Savings time.