211,721 people (2024 Census estimate, +7.2% since 2020)
529 square miles of land · 400 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.
6 active community water systems list Sumner County in the area they serve, reporting 302,055 people served in all (a system that crosses county lines counts its whole population).
| WHITE HOUSE UTILITY DISTRICT surface water · local government · TN0000745 | 130,411 served |
| GALLATIN WATER DEPARTMENT surface water · local government · TN0000253 | 65,964 served |
| HENDERSONVILLE U.D. surface water · local government · TN0000294 | 59,034 served |
| PORTLAND WATER SYSTEM surface water · local government · TN0000559 | 25,761 served |
| CASTALIAN SPRINGS-BETHPAGE U.D. buys surface water · local government · TN0000097 | 14,555 served |
| WESTMORELAND WATER SYSTEM buys surface water · local government · TN0000738 | 6,330 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 757 people were held in Sumner County's jail, in Vera's latest figure (2024), or 565 per 100,000 residents ages 15–64. In 2019 it was about 870.
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 Sumner County. School taxes are usually the largest part of a property tax bill.
Spent $378.4 million — $343.9 million to run schools, about $11,191 per student, plus $23.7 million on buildings and equipment. Money in: $168.2 million local (mostly property tax), $172.5 million state, $38.5 million federal. Long-term debt: $213.8 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 Sumner County about $86.7 million a year on average in buildings, crops and lives. Ability to bounce back (community resilience): Relatively Moderate; social vulnerability: Very Low.
Source: FEMA National Risk Index (December 2025), expected annual loss. Ratings compare counties nationwide; they're estimates, not predictions.
398 bridges in Sumner County: 268 in good condition, 114 fair, and 16 poor (4.0%). “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 6 over W. FK STATION CAMP CREEK · built 1955 | 22,654 vehicles a day |
| FAP 6 over E. FK STATION CAMP CREEK · built 1955 | 22,654 vehicles a day |
| FAP 6 over DESHEA CREEK · built 1941 | 13,975 vehicles a day |
| FAP 25 over BLEDSOE CREEK · built 1927 | 10,746 vehicles a day |
| FAS 41 over RIGHT FORK SLATERS CREEK · built 1939 | 9,891 vehicles a day |
| FAS 174 over STATION CAMP CREEK · built 1958 | 8,962 vehicles a day |
Source: Federal Highway Administration, National Bridge Inventory (2025 submission). Includes state, county and city bridges.
Federal grants paid for $102.4 million of work in Sumner County in fiscal 2025, about $522 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 Sumner 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 Sumner County built: brayden.ozark@gmail.com.
More of Tennessee: the state government and every county in Tennessee.
Nearby counties: Trousdale County (18 mi) · Simpson County, KY (20 mi) · Robertson County (23 mi) · Wilson County (24 mi) · Allen County, KY (24 mi) · Macon County (26 mi).