43,619 people (2024 Census estimate, +6.2% since 2020)
433 square miles of land · 101 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 67,594 people served in all (a system that crosses county lines counts its whole population).
| WARREN COUNTY UTILITY DISTRICT surface water · local government · TN0000818 | 29,055 served |
| WEST WARREN-VIOLA U.D. surface water · local government · TN0000742 | 19,510 served |
| MCMINNVILLE WATER DEPT surface water · local government · TN0000423 | 19,029 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 258 people were held in Warren County's jail, in Vera's latest figure (2024), or 960 per 100,000 residents ages 15–64. In 2019 it was about 264.
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 $84.5 million — $66.7 million to run schools, about $10,299 per student, plus $16.3 million on buildings and equipment. Money in: $19.7 million local (mostly property tax), $42 million state, $21.6 million federal. Long-term debt: $19.6 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 Warren County about $18.4 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Low; social vulnerability: Relatively High.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
160 bridges in Warren County: 67 in good condition, 89 fair, and 4 poor (2.5%). “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.
| NFA A855 over MUD CREEK · built 1924 | 2,460 vehicles a day |
| NFA 1114 (SA 8907) over N.PRONG BARREN FORK RIVE · built 1977 | 770 vehicles a day |
| NFA 2138 (SA 8920) over SPRING CREEK · built 1930 | 570 vehicles a day |
| FAS 287 over COLLINS RIVER · built 1986 | 544 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $3.7 million of work in Warren County in fiscal 2025, about $89 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.
General election: Tuesday, November 3, 2026. Last day to register to vote: 2026-10-05. Early voting: 2026-10-14 to 2026-10-29. Mail ballot request deadline: 2026-10-24. Election Day: 2026-11-03.
Source: Tennessee Secretary of State: elections calendar · Tennessee Secretary of State: registration deadline FAQ · Tennessee Secretary of State: GoVoteTN
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 Tennessee: the state government and every county in Tennessee.
Nearby counties: Van Buren County (18 mi) · Cannon County (18 mi) · Grundy County (20 mi) · DeKalb County (21 mi) · Coffee County (21 mi) · White County (25 mi).