Ziebach County | |
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![]() Ziebach County Courthouse | |
![]() Location within the U.S. state of South Dakota | |
![]() South Dakota's location within the U.S. | |
Coordinates: 44°59′N 101°40′W / 44.98°N 101.67°W | |
Country | ![]() |
State | ![]() |
Founded | 1911 |
Named for | Frank M. Ziebach |
Seat | Dupree |
Largest city | Dupree |
Area | |
• Total | 1,971 sq mi (5,100 km2) |
• Land | 1,961 sq mi (5,080 km2) |
• Water | 9.3 sq mi (24 km2) 0.5% |
Population (2020) | |
• Total | 2,413 |
• Estimate (2023) | 2,322 ![]() |
• Density | 1.2/sq mi (0.47/km2) |
Time zone | UTC−7 (Mountain) |
• Summer (DST) | UTC−6 (MDT) |
Congressional district | At-large |
Ziebach County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,413.[1] Its county seat is Dupree.[2] It is the last county (or county equivalent) in the United States alphabetically.
The county's per-capita income makes it the fourth-poorest county in the United States.[3]