1,215 people (2024 Census estimate, −3.0% since 2020)
861 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 Hyde County in the area they serve, reporting 12,515 people served in all (a system that crosses county lines counts its whole population).
| MID-DAKOTA RURAL WATER surface water · private · SD4602175 | 11,833 served |
| HIGHMORE buys surface water · local government · SD4600158 | 682 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 3 people were held in Hyde County's jail, in Vera's latest figure (2019), or 364 per 100,000 residents ages 15–64. In 2014 it was about 1.
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.
1 school district has its office in Hyde County. School taxes are usually the largest part of a property tax bill.
Spent $3.3 million — $3.3 million to run schools, about $14,658 per student, plus $46,000 on buildings and equipment. Money in: $3.1 million local (mostly property tax), $801,000 state, $485,000 federal. Long-term debt: $6,000.
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 Hyde County about $2.7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
23 bridges in Hyde County: 8 in good condition, 10 fair, and 5 poor (21.7%). “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 SD034 over CAMPBELL CK · built 1963 | 918 vehicles a day |
| IRR AR SD047 over BR WEST FORK ELM CK · built 1959 | 405 vehicles a day |
| 326 AVENUE over SOUTH CHAPELLE CK · built 1920 | 65 vehicles a day |
| 215 STREET over WEST FORK ELM CK · built 1928 | 65 vehicles a day |
| 333RD AVENUE over SOUTH MEDICINE CK · built 1934 | 31 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $5.7 million of work in Hyde County in fiscal 2025, about $4,512 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 Hyde 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 Hyde County built: brayden.ozark@gmail.com.
More of South Dakota: the state government and every county in South Dakota.
Nearby counties: Hand County (23 mi) · Hughes County (27 mi) · Sully County (35 mi) · Buffalo County (36 mi) · Faulk County (40 mi) · Potter County (43 mi).