44,292 people (2024 Census estimate, +1.4% since 2020)
490 square miles of land · 90 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.
7 active community water systems list Brown County in the area they serve, reporting 47,074 people served in all (a system that crosses county lines counts its whole population).
| BROWN COUNTY RURAL WATER groundwater · local government · OH0802012 | 32,090 served |
| MOUNT ORAB VILLAGE PWS surface water · local government · OH0801011 | 6,607 served |
| GEORGETOWN VILLAGE PWS buys groundwater · local government · OH0800503 | 4,331 served |
| WAYNOKA REGIONAL WATER AND SEWER DIST buys groundwater · private · OH0800811 | 1,860 served |
| SARDINIA VILLAGE PWS buys groundwater · local government · OH0801511 | 952 served |
| HAMERSVILLE VILLAGE PWS buys groundwater · local government · OH0800603 | 925 served |
| FAYETTEVILLE VILLAGE PWS buys groundwater · local government · OH0800411 | 309 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 111 people were held in Brown County's jail, in Vera's latest figure (2023), or 410 per 100,000 residents ages 15–64. In 2018 it was about 73.
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.
6 school districts have their office in Brown County. School taxes are usually the largest part of a property tax bill.
Spent $45.6 million — $38.5 million to run schools, about $14,056 per student, plus $2.6 million on buildings and equipment. Money in: $9 million local (mostly property tax), $26.6 million state, $4.8 million federal.
Spent $16.9 million — $15.1 million to run schools, about $13,244 per student, plus $1.3 million on buildings and equipment. Money in: $7.3 million local (mostly property tax), $8.6 million state, $3 million federal. Long-term debt: $4.5 million.
Spent $15.3 million — $13.2 million to run schools, about $13,573 per student, plus $1.8 million on buildings and equipment. Money in: $4.5 million local (mostly property tax), $8.6 million state, $3.5 million federal. Long-term debt: $2.4 million.
Spent $12.1 million — $10.8 million to run schools, about $14,344 per student, plus $856,000 on buildings and equipment. Money in: $4.3 million local (mostly property tax), $6.4 million state, $1.7 million federal. Long-term debt: $4.3 million.
Spent $13.4 million — $12.7 million to run schools, about $18,105 per student, plus $223,000 on buildings and equipment. Money in: $3.9 million local (mostly property tax), $7.8 million state, $1.5 million federal. Long-term debt: $565,000.
Spent $8.1 million — $7.4 million to run schools, about $16,483 per student, plus $550,000 on buildings and equipment. Money in: $4.1 million local (mostly property tax), $6.1 million state, $418,000 federal. Long-term debt: $284,000.
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: Relatively Low compared with other U.S. counties. FEMA estimates natural hazards cost Brown County about $17.7 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.
222 bridges in Brown County: 140 in good condition, 75 fair, and 7 poor (3.2%). “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.
| BUS.62 over OHIO RIVER CSX RR LOCAL · built 1931 | 6,478 vehicles a day |
| SR 131 over GRASSY RUN · built 1946 | 3,422 vehicles a day |
| STEPHENSON ROAD over STREAM · built 1930 | 951 vehicles a day |
| RIPLEY RD over RED OAK CREEK · built 1948 | 268 vehicles a day |
| VERNON ROAD over MIDDLE BRANCH BULLSKIN C · built 1925 | 209 vehicles a day |
| ANDERSON STATE RD over MURRAY RUN · built 1955 | 198 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $14.7 million of work in Brown County in fiscal 2025, about $336 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 Brown 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 Brown County built: brayden.ozark@gmail.com.
More of Ohio: the state government and every county in Ohio.
Nearby counties: Clermont County (17 mi) · Bracken County, KY (22 mi) · Adams County (22 mi) · Highland County (23 mi) · Mason County, KY (23 mi) · Campbell County, KY (28 mi).