Below is a list of Twin Brooks SD zip codes. For your research we have also included Twin Brooks Area Code, Time Zone, UTC and the local Grant County FIPS Code. Each Twin Brooks South Dakota zip code has a center Longitude / Latitude point (the Twin Brooks center is -96.781997680664 / 45.207599639893). For your convenience we have also indicated if that zip code in Twin Brooks observes Daylight Savings time.