Gibson County, Indiana · Princeton
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Gibson County averages 21 nights a year at 20°F or colder, mostly December to February, and 37% of its homes predate 1960.
Basements flood here mostly in March. Gibson County averages 12.1 days a year with an inch of rain or more.
Sewage backups in Gibson County spike on heavy-rain days, about 12.1 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 68 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
11% of occupied homes in Gibson County heat mainly with wood or propane, below the Indiana county median of 17%.
With 73 muggy nights a year, mold in Gibson County can appear within days of a leak. Dry first, then clean.
Local risk profile
Gibson County covers 487 square miles of southwest Indiana, with about 33,000 residents and 14,890 homes. The county seat is Princeton, and Fort Branch, Oakland City and Haubstadt round out the largest towns. Half the homes here were built before 1974, half after.
55/100 Water Damage Risk Index: Elevated Gibson County ranks 27 of 92 Indiana counties. See the statewide ranking and method.The three factors where Gibson County ranks highest compared with other Indiana counties.
Winters here are on the gentler end for Indiana, and pipes still freeze. In the 2015–2024 record the county logged about 21 nights a year at or below 20°F (87th of 92) and 81 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
On December 23, 2022 the low fell to about -6°F, and in the stretch ending January 2018 the county went 13 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 1 and end around Apr 8.
Heavy rain is a bigger factor here than in most of Indiana. About 12.1 days a year bring an inch or more (13th of 92), most often in March, out of 48.6 inches of total precipitation. On September 9, 2018, 3.28 inches fell in a single day. The worst three-day stretch dropped 5.02 inches, ending September 9, 2018, the kind of soaking that overwhelms sump pumps and storm sewers.
About 68 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
Roughly 57% of the county's housing was built before 1980. That puts Gibson near the middle of Indiana's 92 counties.
The mix runs from 37% built before 1960 to 21% built since 2000, so older neighborhoods bring aging pipe while newer subdivisions bring failed appliance lines and water heaters.
9% of homes are manufactured or mobile homes, above the Indiana county median of 6.4%. 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.
Beyond water
Gibson County averages 73 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in March. The EPA recommends keeping indoor humidity below 60%, ideally 30 to 50%. Basements can pass 60% on their own in summer, so a dehumidifier matters even without a leak, and anything wet should be dried within 24 to 48 hours.
Mold remediation: what to expectHeating fuel matters for fire risk. In Gibson County it's 48% utility gas, 40% electric, 10% propane and 1% wood. Heating equipment, cooking and electrical failures cause most home fires nationally. Even a small kitchen fire can leave soot through the whole house, because smoke follows air currents into closets, ducts and attic space.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Gibson County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Knox and Pike get more pipe-freeze nights than Gibson. Knox County has the oldest housing nearby, with 70% of homes built before 1980.
By the numbers
| Factor | Gibson | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 37% | 35% | 38 of 92 |
| Homes built before 1980 | 57% | 58% | 49 of 92 |
| Homes built 2000 or later | 21% | 18% | 28 of 92 |
| Manufactured or mobile homes | 8.5% | 6.4% | 28 of 92 |
| Vacant homes | 9.8% | 9.2% | 38 of 92 |
| Wood or propane heat | 11% | 17% | 64 of 92 |
| Nights at 20°F or colder | 21/yr | 33/yr | 87 of 92 |
| Days with 1 inch+ of rain | 12/yr | 7.8/yr | 13 of 92 |
| Freeze-thaw days | 68/yr | 84/yr | 89 of 92 |
| Muggy nights (65°F+) | 73/yr | 38/yr | 3 of 92 |
Rank 1 is the highest value. Bars run from the lowest to the highest Indiana county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Gibson County: freezing from December to February, heavy rain in January, March and August.
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