38,907 people (2024 Census estimate, +0.4% since 2020)
429 square miles of land · 91 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.
12 active community water systems list Champaign County in the area they serve, reporting 18,712 people served in all (a system that crosses county lines counts its whole population).
| URBANA CITY PWS groundwater · local government · OH1101212 | 11,428 served |
| SAINT PARIS VILLAGE PWS groundwater · local government · OH1100912 | 2,089 served |
| NORTH LEWISBURG VILLAGE PWS groundwater · local government · OH1100812 | 1,850 served |
| MECHANICSBURG VILLAGE PWS groundwater · local government · OH1100712 | 1,644 served |
| CHRISTIANSBURG VILLAGE PWS groundwater · local government · OH1100112 | 526 served |
| ROLLING HILLS MOBILE HOME PARK groundwater · private · OH1101012 | 500 served |
| HARVEST SQUARE MOBILE HOME PARK groundwater · private · OH1100512 | 345 served |
| GRANDVIEW HEIGHTS CIVIC ASSOCIATION PWS groundwater · private · OH1100412 | 120 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 35 people were held in Champaign County's jail, in Vera's latest figure (2023), or 142 per 100,000 residents ages 15–64. In 2018 it was about 48.
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.
5 school districts have their office in Champaign County. School taxes are usually the largest part of a property tax bill.
Spent $28.9 million — $27 million to run schools, about $14,569 per student, plus $414,000 on buildings and equipment. Money in: $15.3 million local (mostly property tax), $12.2 million state, $2.8 million federal. Long-term debt: $26.2 million.
Spent $23.7 million — $21.7 million to run schools, about $13,014 per student, plus $976,000 on buildings and equipment. Money in: $10.1 million local (mostly property tax), $11.8 million state, $3 million federal. Long-term debt: $7.1 million.
Spent $16.5 million — $15.3 million to run schools, about $12,894 per student, plus $551,000 on buildings and equipment. Money in: $9 million local (mostly property tax), $8.4 million state, $1 million federal. Long-term debt: $9.1 million.
Spent $14.4 million — $12.2 million to run schools, about $14,132 per student, plus $847,000 on buildings and equipment. Money in: $7.1 million local (mostly property tax), $6.8 million state, $1.2 million federal. Long-term debt: $5.8 million.
Spent $14.3 million — $12.5 million to run schools, about $15,171 per student, plus $402,000 on buildings and equipment. Money in: $7.4 million local (mostly property tax), $6.3 million state, $2.3 million federal. Long-term debt: $3.9 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: Very Low compared with other U.S. counties. FEMA estimates natural hazards cost Champaign County about $10.5 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Very High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
193 bridges in Champaign County: 170 in good condition, 21 fair, and 2 poor (1.0%). “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.
| W. COURT STREET over DUGAN RUN · built 1916 | 1,411 vehicles a day |
| GILBERT ROAD over SPAIN CREEK · built 1937 | 324 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $8.5 million of work in Champaign County in fiscal 2025, about $219 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 Ohio 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 Champaign 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 Champaign County built: brayden.ozark@gmail.com.
More of Ohio: the state government and every county in Ohio.
Nearby counties: Clark County (15 mi) · Logan County (18 mi) · Union County (24 mi) · Miami County (25 mi) · Madison County (25 mi) · Shelby County (27 mi).