Below is a list of Charles Mix County SD zip codes. For your research we have also included Charles Mix County Area Code, Time Zone, UTC and the local County FIPS Code. Each Charles Mix County South Dakota zip code has a center Longitude / Latitude point (the Charles Mix County center is -98.501800537109 / 43.137699127197). For your convenience we have also indicated if that zip code in Charles Mix County observes Daylight Savings time.