Welcome to Ziebach County ...Time Zone: Ziebach County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time. The community of Dupree is the Seat for Ziebach County. Ziebach County was founded in 1911. Ziebach was created by taking area from Armstrong, Schnasse and Sterling Counties. From the Census Estimates for 2019, <1> Ziebach had a population of 2,756 people. This is a decrease of 2.41% since the last Census (which gave a population of 2,824 people in 2010). At the time of the 2010 Census, Ziebach represented 0.35% of the total population of South Dakota. Websites of Interest ...
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