38,175 people (2024 Census estimate, +0.8% since 2020)
1,114 square miles of land · 34 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 Oneida County in the area they serve, reporting 11,951 people served in all (a system that crosses county lines counts its whole population).
| RHINELANDER WATER & WASTEWATER groundwater · local government · WI7440126 | 8,234 served |
| LAKELAND SANITARY DIST 1 groundwater · local government · WI7440116 | 2,381 served |
| THREE LAKES SANITARY DISTRICT groundwater · local government · WI7440129 | 500 served |
| NORTHERNAIRE SANITARY DISTRICT groundwater · local government · WI7440812 | 315 served |
| MCNAUGHTON CORRECTIONAL CENTER groundwater · state · WI7440115 | 133 served |
| HARMONY HILLS MH VILLAGE groundwater · private · WI7440121 | 100 served |
| LAKELAND VILLAGE 1 groundwater · private · WI7440117 | 81 served |
| PATRICIA LAKE MANUFACTURED HOUSING COMMUNITY groundwater · private · WI7440139 | 56 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 49 people were held in Oneida County's jail, in Vera's latest figure (2025). In 2020 it was about 165.
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.
4 school districts have their office in Oneida County. School taxes are usually the largest part of a property tax bill.
Spent $44.2 million — $39.6 million to run schools, about $17,316 per student, plus $1.4 million on buildings and equipment. Money in: $19.7 million local (mostly property tax), $18.5 million state, $4.8 million federal. Long-term debt: $3 million.
Spent $18.7 million — $16.4 million to run schools, about $21,999 per student, plus $1.2 million on buildings and equipment. Money in: $13.5 million local (mostly property tax), $4.4 million state, $2.9 million federal. Long-term debt: $9.2 million.
Spent $11.4 million — $9.2 million to run schools, about $16,610 per student, plus $334,000 on buildings and equipment. Money in: $7.8 million local (mostly property tax), $2.8 million state, $1.2 million federal. Long-term debt: $660,000.
Spent $12.3 million — $11 million to run schools, about $21,272 per student, plus $160,000 on buildings and equipment. Money in: $8 million local (mostly property tax), $3.1 million state, $1.2 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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Oneida County about $23.9 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Relatively Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
61 bridges in Oneida County: 18 in good condition, 31 fair, and 12 poor (19.7%). “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.
| LRD KEMP STREET over WISCONSIN RIVER 46 · built 1956 | 8,213 vehicles a day |
| LRD PHILLIP ST over WISCONSIN RIVER 48 · built 1964 | 4,800 vehicles a day |
| LRD EAGLE ST over BOOM LAKE · built 1982 | 4,201 vehicles a day |
| CTH C over N BR PELICAN RIVER · built 1960 | 3,908 vehicles a day |
| CTH L over BEARSKIN CREEK · built 1932 | 3,642 vehicles a day |
| CTH O over WISCONSIN RIVER 52 · built 1979 | 1,910 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $16.4 million of work in Oneida County in fiscal 2025, about $433 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 Oneida 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 Oneida County built: brayden.ozark@gmail.com.
More of Wisconsin: the state government and every county in Wisconsin.
Nearby counties: Vilas County (23 mi) · Lincoln County (28 mi) · Forest County (37 mi) · Langlade County (39 mi) · Price County (40 mi) · Gogebic County, MI (55 mi).