Hancock County, Tennessee · Sneedville
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Pipes freeze in Hancock County on about 15 nights a year, mostly December to February. Older homes, 26% of the stock here, are most at risk.
Basements flood here mostly in February. Hancock County averages 11.2 days a year with an inch of rain or more.
Backups often follow heavy rain, which Hancock County gets about 11.2 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
Roof leaks here come from summer downpours and, with about 74 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
19% of occupied homes in Hancock County heat mainly with wood or propane, above the Tennessee county median of 7.8%.
About 43 nights a year here stay at 65°F or warmer, so basements and crawl spaces can grow mold even without a leak.
Local risk profile
With 3,675 homes and around 6,852 residents, Hancock County is 222 square miles of northeast Tennessee. The county seat is Sneedville. The county's median home was built in 1982.
60/100 Water Damage Risk Index: Elevated Hancock County ranks 20 of 95 Tennessee counties. See the statewide ranking and method.The three factors where Hancock County ranks highest compared with other Tennessee counties.
Hancock is on the colder side of Tennessee for pipes. From 2015–2024 it averaged 15 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 81 nights at or below 32°F. That ranks 8th of 95 counties.
On February 20, 2015 the low fell to about -8°F, and in the stretch ending January 2018 the county went 8 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
Most freezing nights fall from December to February, peaking in January. Disconnect garden hoses and shut off outdoor spigots before the first hard frost, and keep the heat at 55°F or higher if you'll be away.
On average the first fall freeze arrives around Oct 31 and the last spring freeze around Apr 11.
Hancock gets fewer downpours than most Tennessee counties, but they still fill basements. The county gets about 53.1 inches of rain and melted snow a year, with 11.2 days of an inch or more (82nd of 95). Those downpours cluster in February, March and May, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.41 inches on February 6, 2020. Multi-day storms matter most for basements; the wettest three days on record here totaled 5.6 inches (through September 27, 2024).
About 74 days a year swing from below freezing at night to above freezing by day. Those freeze-thaw cycles feed ice dams on roofs, open cracks in foundations and driveways, and stress pipes that are already marginal.
Housing
Tennessee's 95 counties range widely in housing age; Hancock ranks 26th, with 47% of its homes built before 1980.
Before 1960 is when 26% of these homes went up. Galvanized supply lines and cast iron drains were standard then, and after 60-plus years both corrode and crack, often out of sight inside a wall or under a slab.
27% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
Manufactured and mobile homes make up 22% of the housing here. Water lines in the underbelly depend on intact skirting and working heat tape, and they're usually the first to freeze in a cold snap.
23% of homes were vacant at survey time. A leak in an empty rental or seasonal house can run for days before anyone notices, which is why those losses tend to be larger.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 43 times a year here, below the Tennessee county median of 74. Mold grows when indoor humidity stays above about 60%, the EPA's ceiling. A basement dehumidifier set to 50% and drying anything wet within 24 to 48 hours prevents most problems.
Mold remediation: what to expectMain heating fuel in Hancock County's occupied homes: 2% utility gas, 77% electric, 11% propane and 8% wood. Wood and propane heat are above the Tennessee norm. Annual chimney and vent inspection, which the NFPA recommends, is one of the most effective fire-prevention habits for these homes.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Hancock County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Claiborne gets more pipe-freeze nights than Hancock. It also has the most heavy-rain days in its area. Its housing is the oldest in the area by share of homes built before 1980.
By the numbers
| Factor | Hancock | Tennessee median | Rank |
|---|---|---|---|
| Homes built before 1960 | 26% | 16% | 8 of 95 |
| Homes built before 1980 | 47% | 41% | 26 of 95 |
| Homes built 2000 or later | 26% | 27% | 51 of 95 |
| Manufactured or mobile homes | 22% | 16% | 24 of 95 |
| Vacant homes | 23% | 12% | 6 of 95 |
| Wood or propane heat | 19% | 7.8% | 12 of 95 |
| Nights at 20°F or colder | 15/yr | 11/yr | 8 of 95 |
| Days with 1 inch+ of rain | 11/yr | 14/yr | 82 of 95 |
| Freeze-thaw days | 74/yr | 60/yr | 6 of 95 |
| Muggy nights (65°F+) | 43/yr | 74/yr | 86 of 95 |
Rank 1 is the highest value. Bars run from the lowest to the highest Tennessee county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Hancock County: freezing from December to February, heavy rain in February, March and May.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology