2,418 people (2024 Census estimate, +1.0% since 2020)
1,961 square miles of land · 1 people per square mile
“Highest” and “lowest” are just order, not grades: a high rank for poverty or hazard losses means more of it. Each figure's source is in its section below.
2 active community water systems list Ziebach County in the area they serve, reporting 2,715 people served in all (a system that crosses county lines counts its whole population).
| TRI-COUNTY RURAL WATER SYSTEM surface water · private · SD4600112 | 2,190 served |
| DUPREE buys surface water · local government · SD4600110 | 525 served |
Source: U.S. EPA Safe Drinking Water Information System (SDWIS), active community systems, . Look up any system's violations and test results with EPA's search using its ID.
About 110 people were held in Ziebach County's jail, in Vera's latest figure (2019), or 6,351 per 100,000 residents ages 15–64. In 2014 it was about 60.
Source: Vera Institute of Justice, Incarceration Trends (built from federal Bureau of Justice Statistics jail surveys). Counties without their own jail, or that share one, may show no figure.
2 school districts have their office in Ziebach County. School taxes are usually the largest part of a property tax bill.
Spent $15.1 million — $7 million to run schools, about $17,333 per student, plus $8 million on buildings and equipment. Money in: $1.5 million local (mostly property tax), $3.1 million state, $9.1 million federal.
Spent $16.8 million — $10.8 million to run schools, about $29,942 per student, plus $5.9 million on buildings and equipment. Money in: $1.1 million local (mostly property tax), $2.7 million state, $13.6 million federal.
Source: U.S. Census Bureau, 2023 Annual Survey of School System Finances. Districts are listed by the county of their main office; some serve neighboring counties too.
Source: County Health Rankings & Roadmaps 2025 (University of Wisconsin Population Health Institute), which gathers federal data (CDC, Census, and others); measures cover different recent years. Blank lines aren't reported for small counties.
Overall risk: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Ziebach County about $4.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very Low; social vulnerability: Very High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
30 bridges in Ziebach County: 7 in good condition, 20 fair, and 3 poor (10.0%). “Poor” means a main part — the deck, the beams, or the supports — is rated 4 or lower on the federal 0–9 scale. It doesn't mean unsafe to drive; unsafe bridges are closed.
| IRR SD063 over DUPREE CK · built 1961 | 590 vehicles a day |
| FOUR CORNERS ROAD over CK · built 1930 | 16 vehicles a day |
| IRR COUNTY ROAD over BEAR CK · built 1935 | 10 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $6.7 million of work in Ziebach County in fiscal 2025, about $2,784 per resident — to the county, cities, schools, hospitals, nonprofits and others.
Source: USAspending.gov, grants by place of performance, fiscal 2025 (Oct. 2024 to Sept. 2025). Search it by county to see each award.
From Grants.gov: posted grants listing county governments as eligible, soonest deadline first; research-only and overseas programs left out; list updated 2026-10-13, refreshed weekly. 62 are open in all. Cities, towns, school districts and nonprofits have their own lists there.
Registration deadlines, early voting and polling places for South Dakota are on the federal site vote.gov, which links to the state's official election office.
The budget, property tax rates, audits, local officials and offices for Ziebach County come from the county's own records, which we haven't gathered — not gathered, never hidden. See what a full county site looks like, or ask to have Ziebach County built: brayden.ozark@gmail.com.
More of South Dakota: the state government and every county in South Dakota.
Nearby counties: Dewey County (42 mi) · Haakon County (49 mi) · Perkins County (52 mi) · Corson County (53 mi) · Meade County (58 mi) · Stanley County (60 mi).