McMinn County, Tennessee · Athens
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With 22% of homes built before 1960 and about 7 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
Heavy rain days of an inch or more come about 13.9 times a year here, most often in February. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which McMinn County gets about 13.9 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
In McMinn County, 4.24 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
7% of occupied homes in McMinn County heat mainly with wood or propane, below the Tennessee county median of 7.8%.
About 80 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 24,137 homes and around 54,884 residents, McMinn County is 430 square miles of southern Tennessee. Athens is the county seat; Etowah, Englewood and Riceville are the next largest communities. Half the homes here were built before 1983, half after.
48/100 Water Damage Risk Index: Elevated McMinn County ranks 58 of 95 Tennessee counties. See the statewide ranking and method.The three factors where McMinn County ranks highest compared with other Tennessee counties.
Winters here are on the gentler end for Tennessee, and pipes still freeze. It averaged 62 freezing nights a year over 2015–2024, 7 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 95 Tennessee counties that's 87th.
On January 18, 2024 the low fell to about 3°F, and in the stretch ending December 2022 the county went 4 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
Expect the hardest freezes in January, inside a season that runs December to February. That's when an outdoor spigot left connected to a hose, or a pipe in a crawl space, is most likely to split.
Freezing nights typically start around Nov 7 and end around Apr 1.
Rainfall is about average for Tennessee. About 13.9 days a year bring an inch or more (52nd of 95), most often in February, out of 59.3 inches of total precipitation. On February 6, 2020, 4.24 inches fell in a single day. The worst three-day stretch dropped 6.17 inches, ending February 7, 2020, the kind of soaking that overwhelms sump pumps and storm sewers.
About 59 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
46% of homes in McMinn County predate 1980, above the Tennessee county median of 41.2%, which ranks 28th of Tennessee's 95 counties.
22% were built before 1960. Homes from that era often still have galvanized steel supply pipe, which rusts from the inside until it pinholes, and cast iron drains that crack with age. Slow leaks behind walls are a common start to water damage in these houses.
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.
16% of homes are manufactured or mobile homes, close to the Tennessee county median of 15.9%. Their water lines run under the floor behind the skirting, so a torn skirt or failed heat tape freezes them faster than lines in a site-built house.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 80 times a year here, close to the Tennessee county median of 74. Keep indoor humidity under 60%, as the EPA advises, and dry any leak within 24 to 48 hours; in a humid month a wet basement left alone won't dry by itself.
Mold remediation: what to expectMain heating fuel in McMinn County's occupied homes: 26% utility gas, 67% electric, 4% propane and 3% wood. Most homes here heat with gas or electricity, so cooking and electrical faults are the likelier fire sources. Even a contained kitchen fire can send soot through the ductwork to every room.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across McMinn County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Monroe and Polk get more pipe-freeze nights than McMinn. Roane County has the oldest housing nearby, with 51% of homes built before 1980.
By the numbers
| Factor | McMinn | Tennessee median | Rank |
|---|---|---|---|
| Homes built before 1960 | 22% | 16% | 15 of 95 |
| Homes built before 1980 | 46% | 41% | 28 of 95 |
| Homes built 2000 or later | 27% | 27% | 50 of 95 |
| Manufactured or mobile homes | 16% | 16% | 47 of 95 |
| Vacant homes | 12% | 12% | 45 of 95 |
| Wood or propane heat | 6.5% | 7.8% | 59 of 95 |
| Nights at 20°F or colder | 7/yr | 11/yr | 87 of 95 |
| Days with 1 inch+ of rain | 14/yr | 14/yr | 52 of 95 |
| Freeze-thaw days | 59/yr | 60/yr | 58 of 95 |
| Muggy nights (65°F+) | 80/yr | 74/yr | 31 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 McMinn County: freezing from December to February, heavy rain in February, March and December.
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