Below is a list of Owanka SD zip codes. For your research we have also included Owanka Area Code, Time Zone, UTC and the local Pennington County FIPS Code. Each Owanka South Dakota zip code has a center Longitude / Latitude point (the Owanka center is -102.58699798584 / 44.02209854126). For your convenience we have also indicated if that zip code in Owanka observes Daylight Savings time.