Columbus County, North Carolina · Whiteville
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Columbus County averages 2 nights a year at 20°F or colder, mostly January, and 19% of its homes predate 1960.
Heavy rain days of an inch or more come about 12.9 times a year here, most often in July. A sump pump that hasn't run since last season is a common weak point.
Sewage backups in Columbus County spike on heavy-rain days, about 12.9 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 37 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
20% of occupied homes in Columbus County heat mainly with wood or propane, above the North Carolina county median of 11.7%.
About 115 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
About 50,140 people live in Columbus County, 938 square miles in southern North Carolina, in roughly 23,563 homes. Besides Whiteville, the county seat, the biggest communities are Tabor City, Lake Waccamaw and Chadbourn. Half the homes here were built before 1982, half after.
51/100 Water Damage Risk Index: Elevated Columbus County ranks 51 of 100 North Carolina counties. See the statewide ranking and method.The three factors where Columbus County ranks highest compared with other North Carolina counties.
Winters here are on the gentler end for North Carolina, and pipes still freeze. In the 2015–2024 record the county logged about 2 nights a year at or below 20°F (91st of 100) and 38 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
Expect the hardest freezes in January, inside a season that runs January. 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 21 and end around Mar 19.
Heavy rain is a bigger factor here than in most of North Carolina. The county gets about 53.9 inches of rain and melted snow a year, with 12.9 days of an inch or more (31st of 100). Those downpours cluster in July, August and September, when sump pumps and gutters are tested hardest. The wettest day on record brought 6.56 inches on September 3, 2016. The worst three-day stretch dropped 14.81 inches, ending September 17, 2018, the kind of soaking that overwhelms sump pumps and storm sewers.
About 37 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
North Carolina's 100 counties range widely in housing age; Columbus ranks 28th, with 47% of its homes built before 1980.
Older and newer homes sit side by side here: 19% predate 1960 and 21% are from 2000 or later. Corroded pipe is the typical failure in the first group, burst supply hoses in the second.
The 1980s and 1990s account for 32% 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.
Here 30% of housing is manufactured homes. Check the skirting and the heat tape on the main water line every fall, because that one exposed line is what freezes.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 115 times a year here, above the North Carolina county median of 88.5. 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 Columbus County's occupied homes: 3% utility gas, 76% electric, 19% propane and under 1% wood. Propane heat is 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 Columbus County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Bladen, Pender and Robeson get more pipe-freeze nights than Columbus. Its housing is the oldest in the area by share of homes built before 1980.
By the numbers
| Factor | Columbus | North Carolina median | Rank |
|---|---|---|---|
| Homes built before 1960 | 19% | 18% | 40 of 100 |
| Homes built before 1980 | 47% | 41% | 28 of 100 |
| Homes built 2000 or later | 21% | 26% | 76 of 100 |
| Manufactured or mobile homes | 30% | 17% | 10 of 100 |
| Vacant homes | 15% | 13% | 41 of 100 |
| Wood or propane heat | 20% | 12% | 25 of 100 |
| Nights at 20°F or colder | 2/yr | 5/yr | 91 of 100 |
| Days with 1 inch+ of rain | 13/yr | 12/yr | 31 of 100 |
| Freeze-thaw days | 37/yr | 57/yr | 87 of 100 |
| Muggy nights (65°F+) | 115/yr | 89/yr | 7 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 Columbus County: freezing from January, heavy rain in July, August and September.
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