Below is a list of Fort Thompson SD zip codes. For your research we have also included Fort Thompson Area Code, Time Zone, UTC and the local Buffalo County FIPS Code. Each Fort Thompson South Dakota zip code has a center Longitude / Latitude point (the Fort Thompson center is -99.412300109863 / 44.05179977417). For your convenience we have also indicated if that zip code in Fort Thompson observes Daylight Savings time.