30,261 people (2024 Census estimate, −1.7% since 2020)
545 square miles of land · 56 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.
10 active community water systems list Obion County in the area they serve, reporting 31,694 people served in all (a system that crosses county lines counts its whole population).
| UNION CITY WATER DEPT groundwater · local government · TN0000720 | 16,180 served |
| SOUTH FULTON WATER SYSTEM groundwater · local government · TN0000648 | 4,043 served |
| ELBRIDGE WATER ASSOCIATION groundwater · local government · TN0000220 | 3,239 served |
| TROY WATER SYSTEM groundwater · local government · TN0000712 | 2,096 served |
| OBION WATER DEPT groundwater · local government · TN0000524 | 1,615 served |
| KENTON WATER DEPT groundwater · local government · TN0000347 | 1,492 served |
| HORNBEAK UTILITY DISTRICT groundwater · local government · TN0000311 | 1,416 served |
| SAMBURG UTILITY DISTRICT buys groundwater · local government · TN0000607 | 758 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 151 people were held in Obion County's jail, in Vera's latest figure (2024), or 820 per 100,000 residents ages 15–64. In 2019 it was about 153.
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.
2 school districts have their office in Obion County. School taxes are usually the largest part of a property tax bill.
Spent $41 million — $37.1 million to run schools, about $11,934 per student, plus $3.1 million on buildings and equipment. Money in: $12.9 million local (mostly property tax), $20.4 million state, $7.8 million federal. Long-term debt: $8.5 million.
Spent $20.8 million — $19.2 million to run schools, about $12,464 per student, plus $1.3 million on buildings and equipment. Money in: $7 million local (mostly property tax), $9.3 million state, $4.6 million federal. Long-term debt: $6.6 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 Moderate compared with other U.S. counties. FEMA estimates natural hazards cost Obion County about $34.9 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.
381 bridges in Obion County: 167 in good condition, 203 fair, and 11 poor (2.9%). “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.
| FAP 43 over HARRIS CREEK · built 1929 | 2,784 vehicles a day |
| FAP 22 over NORTH REELFOOT CREEK · built 1953 | 2,130 vehicles a day |
| NFA B100 over OBION R. DRAINAGE CANEL · built 1928 | 1,380 vehicles a day |
| NFA B100 over OVERFLOW · built 1928 | 1,380 vehicles a day |
| NFA B100 over OVERFLOW · built 1928 | 1,380 vehicles a day |
| NFA 1433 (SA 6602) over BROWNS CREEK · built 1958 | 650 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $3.4 million of work in Obion County in fiscal 2025, about $111 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 Obion 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 Obion County built: brayden.ozark@gmail.com.
More of Tennessee: the state government and every county in Tennessee.
Nearby counties: Fulton County, KY (13 mi) · Lake County (19 mi) · Hickman County, KY (24 mi) · Weakley County (24 mi) · Dyer County (25 mi) · Gibson County (28 mi).