8,451 people (2024 Census estimate, +0.3% since 2020)
365 square miles of land · 23 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.
3 active community water systems list Warren County in the area they serve, reporting 2,560 people served in all (a system that crosses county lines counts its whole population).
| WILLIAMSPORT WATER UTILITY groundwater · local government · IN5286004 | 1,800 served |
| WEST LEBANON WATER WORKS groundwater · local government · IN5286003 | 723 served |
| PENCE WATER WORKS groundwater · local government · IN5286002 | 37 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 Warren County's jail, in Vera's latest figure (2024), or 675 per 100,000 residents ages 15–64. In 2019 it was about 25.
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.
1 school district has its office in Warren County. School taxes are usually the largest part of a property tax bill.
Spent $22.6 million — $15.7 million to run schools, about $11,308 per student, plus $5.8 million on buildings and equipment. Money in: $7.8 million local (mostly property tax), $11 million state, $2.2 million federal. Long-term debt: $39.2 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 Warren County about $4.1 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively High; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
135 bridges in Warren County: 40 in good condition, 85 fair, and 10 poor (7.4%). “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 26 over MUD PINE CREEK · built 1933 | 950 vehicles a day |
| CR 300N over JORDAN CREEK · built 1953 | 300 vehicles a day |
| CR 300N over Little Creek · built 1957 | 290 vehicles a day |
| WINTHROP RD over Branch of Kickapoo CREEK · built 1920 | 150 vehicles a day |
| CR 475N over BRANCH BIG PINE CREEK · built 1911 | 70 vehicles a day |
| CR 250N over W BRANCH KICKAPOO CR · built 1915 | 60 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $4.6 million of work in Warren County in fiscal 2025, about $545 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 Warren 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 Warren County built: brayden.ozark@gmail.com.
More of Indiana: the state government and every county in Indiana.
Nearby counties: Benton County (17 mi) · Fountain County (18 mi) · Vermilion County, IL (22 mi) · Tippecanoe County (25 mi) · Montgomery County (33 mi) · Vermillion County (35 mi).