21,027 people (2024 Census estimate, −0.3% since 2020)
988 square miles of land · 21 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.
11 active community water systems list Jackson County in the area they serve, reporting 9,136 people served in all (a system that crosses county lines counts its whole population).
| BLACK RIVER FALLS WATERWORKS groundwater · local government · WI6270244 | 3,608 served |
| BROCKWAY SANITARY DIST 1 groundwater · local government · WI6270299 | 2,692 served |
| MERRILLAN WATERWORKS groundwater · local government · WI6270294 | 531 served |
| MELROSE WATERWORKS groundwater · local government · WI6270293 | 524 served |
| TAYLOR WATERWORKS groundwater · local government · WI6270297 | 498 served |
| ALMA CENTER WATERWORKS groundwater · local government · WI6270298 | 487 served |
| HIXTON WATERWORKS groundwater · local government · WI6270292 | 443 served |
| BLACK RIVER CORRECTIONAL CENTER groundwater · state · WI6270287 | 163 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 26 people were held in Jackson County's jail, in Vera's latest figure (2025). In 2020 it was about 32.
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.
3 school districts have their office in Jackson County. School taxes are usually the largest part of a property tax bill.
Spent $37.3 million — $25.8 million to run schools, about $16,388 per student, plus $8.5 million on buildings and equipment. Money in: $9.6 million local (mostly property tax), $18.2 million state, $5.5 million federal. Long-term debt: $34.3 million.
Spent $14.2 million — $12 million to run schools, about $15,911 per student, plus $226,000 on buildings and equipment. Money in: $4.9 million local (mostly property tax), $8.5 million state, $2.1 million federal. Long-term debt: $20.8 million.
Spent $12.8 million — $9.1 million to run schools, about $15,445 per student, plus $2.9 million on buildings and equipment. Money in: $3.8 million local (mostly property tax), $6.3 million state, $1.7 million federal. Long-term debt: $8.6 million.
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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Jackson County about $12.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
214 bridges in Jackson County: 77 in good condition, 121 fair, and 16 poor (7.5%). “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.
| CTH K over NSP CANAL · built 1973 | 1,100 vehicles a day |
| CTH C over HAWK CREEK · built 1965 | 1,000 vehicles a day |
| LRD 3RD ST over TOWN CREEK · built 1961 | 830 vehicles a day |
| STH 54 over MILL CREEK · built 1959 | 640 vehicles a day |
| STH 54 over WILSON CREEK · built 1936 | 640 vehicles a day |
| CTH C over FRENCH CREEK · built 1927 | 520 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $13.2 million of work in Jackson County in fiscal 2025, about $623 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 Wisconsin 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 Jackson 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 Jackson County built: brayden.ozark@gmail.com.
More of Wisconsin: the state government and every county in Wisconsin.
Nearby counties: Monroe County (28 mi) · Trempealeau County (28 mi) · Clark County (30 mi) · La Crosse County (33 mi) · Eau Claire County (37 mi) · Wood County (39 mi).