78,773 people (2024 Census estimate, +10.7% since 2020)
423 square miles of land · 186 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 Boone County in the area they serve, reporting 35,827 people served in all (a system that crosses county lines counts its whole population).
| LEBANON UTILITIES groundwater · local government · IN5206003 | 16,840 served |
| CITIZENS WATER - WHITESTOWN buys surface water · private · IN5206014 | 15,695 served |
| THORNTOWN UTILITIES groundwater · local government · IN5206005 | 1,600 served |
| JAMESTOWN MUNICIPAL WATER groundwater · local government · IN5206008 | 1,000 served |
| ADVANCE WATER WORKS groundwater · local government · IN5206001 | 500 served |
| PINE RIDGE groundwater · private · IN5206004 | 135 served |
| ZIONSVILLE MHP TRUST groundwater · private · IN5206002 | 57 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 140 people were held in Boone County's jail, in Vera's latest figure (2024), or 288 per 100,000 residents ages 15–64. In 2019 it was about 201.
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 Boone County. School taxes are usually the largest part of a property tax bill.
Spent $133.7 million — $95.1 million to run schools, about $12,024 per student, plus $30.5 million on buildings and equipment. Money in: $65.1 million local (mostly property tax), $65.6 million state, $3.6 million federal. Long-term debt: $159.5 million.
Spent $61.9 million — $45.8 million to run schools, about $13,152 per student, plus $13.2 million on buildings and equipment. Money in: $29.9 million local (mostly property tax), $33.5 million state, $7.1 million federal. Long-term debt: $17.2 million.
Spent $20.6 million — $18.3 million to run schools, about $11,154 per student, plus $1.7 million on buildings and equipment. Money in: $10.6 million local (mostly property tax), $14.4 million state, $1.5 million federal. Long-term debt: $24 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 Boone County about $25.5 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.
292 bridges in Boone County: 118 in good condition, 162 fair, and 12 poor (4.1%). “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.
| SR 32 over FINLEY CREEK · built 1958 | 7,502 vehicles a day |
| US 52 WB over I-65 SB/NB · built 1970 | 4,664 vehicles a day |
| CR 100S over PRAIRIE CREEK · built 1920 | 850 vehicles a day |
| SR 38 over STOKER DITCH · built 1966 | 329 vehicles a day |
| CR 1000E over BIG EAGLE CREEK · built 1925 | 300 vehicles a day |
| CR 600E over MOUNTS RUN · built 1930 | 260 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $29.8 million of work in Boone County in fiscal 2025, about $421 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 Indiana 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 Boone 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 Boone County built: brayden.ozark@gmail.com.
More of Indiana: the state government and every county in Indiana.
Nearby counties: Clinton County (18 mi) · Hendricks County (20 mi) · Montgomery County (22 mi) · Hamilton County (24 mi) · Marion County (26 mi) · Tipton County (28 mi).