Below is a list of Rockham SD zip codes. For your research we have also included Rockham Area Code, Time Zone, UTC and the local Faulk County FIPS Code. Each Rockham South Dakota zip code has a center Longitude / Latitude point (the Rockham center is -98.824897766113 / 44.896999359131). For your convenience we have also indicated if that zip code in Rockham observes Daylight Savings time.