Swain County, North Carolina · Bryson City
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With 12% of homes built before 1960 and about 22 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
February brings the most downpours to Swain County, part of 14.3 heavy-rain days a year. Check the sump first.
12% of homes here predate 1960, when clay and cast iron sewer laterals were standard. Roots and cracks in those lines are a common cause of backups.
Swain County's wettest day in the 2015–2024 record brought 3.7 inches, and about 87 freeze-thaw days a year mean ice dams in some winters.
29% of occupied homes in Swain County heat mainly with wood or propane, above the North Carolina county median of 11.7%.
Muggy summer nights, lows of 65°F or more, come about 0 times a year in Swain County. Mold after a leak spreads fastest from June through August.
Local risk profile
Swain County covers 528 square miles of western North Carolina, with about 14,013 residents and 8,629 homes. Bryson City is the county seat; Cherokee is the next largest community. Much of its housing is recent, with a median build year of 1989.
57/100 Water Damage Risk Index: Elevated Swain County ranks 33 of 100 North Carolina counties. See the statewide ranking and method.The three factors where Swain County ranks highest compared with other North Carolina counties.
Swain County gets more hard-freeze nights than most of North Carolina. From 2015–2024 it averaged 22 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 94 nights at or below 32°F. That ranks 7th of 100 counties.
The longest cold spell was straight 7 days without the temperature rising above freezing, ending in January 2018. The coldest night reached about -6°F on December 24, 2022. Burst pipes usually show up when a spell like that breaks and the ice thaws.
The freeze season here runs November to March, with January the coldest. If you travel then, leave the thermostat at 55°F or above and open sink cabinets on outside walls.
Freezing nights typically start around Oct 22 and end around Apr 21.
Heavy rain is a bigger factor here than in most of North Carolina. Of roughly 65.3 inches of yearly precipitation, the damage comes from the 14.3 days a year with an inch or more, ranked 18th of 100. January, February and December see the most. The single wettest day in the record: 3.7 inches, February 6, 2020. The worst three-day stretch dropped 6.46 inches, ending September 28, 2024, the kind of soaking that overwhelms sump pumps and storm sewers.
Freeze-thaw days, below freezing overnight and above it by afternoon, come about 87 times a year here. They're the main driver of ice dams and of water working its way through foundation cracks in late winter.
Housing
37% of homes in Swain County predate 1980, below the North Carolina county median of 41.2%, which ranks 59th of North Carolina's 100 counties.
Housing age is mixed: 12% of homes are pre-1960 and 28% are 2000 or newer. Ask any plumber which era your house is from and you'll know which failures to watch for.
The 1980s and 1990s account for 35% of the county's homes. If yours is from those decades, look under the sinks and at the water heater for gray plastic pipe stamped PB, which is polybutylene and leak-prone.
26% of homes are manufactured or mobile homes, above the North Carolina county median of 17.4%. 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.
With 30% of homes empty at survey time, landlords and seasonal owners should shut off the main or schedule checks in winter. An unheated vacant house is also where many policies limit freeze coverage.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 0 times a year here, below the North Carolina county median of 88.5. 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 Swain County's occupied homes: 3% utility gas, 62% electric, 22% propane and 7% wood. Wood and propane heat are more common here than in most North Carolina counties. Heating equipment is one of the leading causes of home fires nationally, and the NFPA recommends having chimneys and vents inspected every year.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Swain County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Haywood gets more pipe-freeze nights than Swain. Haywood County has the oldest housing nearby, with 46% of homes built before 1980.
By the numbers
| Factor | Swain | North Carolina median | Rank |
|---|---|---|---|
| Homes built before 1960 | 12% | 18% | 74 of 100 |
| Homes built before 1980 | 37% | 41% | 59 of 100 |
| Homes built 2000 or later | 28% | 26% | 44 of 100 |
| Manufactured or mobile homes | 26% | 17% | 18 of 100 |
| Vacant homes | 30% | 13% | 14 of 100 |
| Wood or propane heat | 29% | 12% | 4 of 100 |
| Nights at 20°F or colder | 22/yr | 5/yr | 7 of 100 |
| Days with 1 inch+ of rain | 14/yr | 12/yr | 18 of 100 |
| Freeze-thaw days | 87/yr | 57/yr | 7 of 100 |
| Muggy nights (65°F+) | 0/yr | 89/yr | 94 of 100 |
Rank 1 is the highest value. Bars run from the lowest to the highest North Carolina county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Swain County: freezing from November to March, heavy rain in January, February 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