Spencer County, Indiana · Rockport
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With 28% of homes built before 1960 and about 21 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
Basements flood here mostly in March. Spencer County averages 12.7 days a year with an inch of rain or more.
28% 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.
Spencer County's wettest day in the 2015–2024 record brought 3.27 inches, and about 74 freeze-thaw days a year mean ice dams in some winters.
22% of occupied homes in Spencer County heat mainly with wood or propane, above the Indiana county median of 17%.
With 65 muggy nights a year, mold in Spencer County can appear within days of a leak. Dry first, then clean.
Local risk profile
With 8,727 homes and around 19,955 residents, Spencer County is 397 square miles of southwest Indiana. Besides Rockport, the county seat, the biggest communities are Santa Claus, Dale and Grandview. Half the homes here were built before 1979, half after.
48/100 Water Damage Risk Index: Elevated Spencer County ranks 57 of 92 Indiana counties. See the statewide ranking and method.The three factors where Spencer County ranks highest compared with other Indiana counties.
Winters here are on the gentler end for Indiana, and pipes still freeze. From 2015–2024 it averaged 21 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 86 nights at or below 32°F. That ranks 87th of 92 counties.
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.
Most freezing nights fall from November 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.
Freezing nights typically start around Nov 1 and end around Apr 9.
Heavy rain is a bigger factor here than in most of Indiana. The county gets about 52.1 inches of rain and melted snow a year, with 12.7 days of an inch or more (8th of 92). Those downpours cluster in February, March and April, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.27 inches on October 28, 2015. The worst three-day stretch dropped 4.65 inches, ending February 25, 2018, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 74 days a year. Each cycle melts and refreezes water at roof edges and in foundation cracks, which is how ice dams and basement seepage get started.
Housing
Indiana's 92 counties range widely in housing age; Spencer ranks 61st, with 52% of its homes built before 1980.
The mix runs from 28% built before 1960 to 18% built since 2000, so older neighborhoods bring aging pipe while newer subdivisions bring failed appliance lines and water heaters.
About 30% of homes went up between 1980 and 1999. Some houses from the late 1970s to the mid-1990s were plumbed with polybutylene, a gray plastic pipe known for failing at fittings. A plumber can tell you in a few minutes whether you have it.
Manufactured and mobile homes make up 11% 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.
Beyond water
Spencer County averages 65 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in March. 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 expectBy main heating fuel, Spencer County homes break down as 42% utility gas, 35% electric, 19% propane and 4% wood. Propane heat is more common here than the state median. Have chimneys swept and fuel-burning appliances serviced each fall, and keep three feet clear around stoves and space heaters.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Spencer County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Dubois and Perry get more pipe-freeze nights than Spencer. All of its neighbors see more heavy-rain days. Perry County has the oldest housing nearby, with 55% of homes built before 1980.
By the numbers
| Factor | Spencer | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 28% | 35% | 62 of 92 |
| Homes built before 1980 | 52% | 58% | 61 of 92 |
| Homes built 2000 or later | 18% | 18% | 45 of 92 |
| Manufactured or mobile homes | 11% | 6.4% | 21 of 92 |
| Vacant homes | 7.4% | 9.2% | 63 of 92 |
| Wood or propane heat | 22% | 17% | 33 of 92 |
| Nights at 20°F or colder | 21/yr | 33/yr | 87 of 92 |
| Days with 1 inch+ of rain | 13/yr | 7.8/yr | 8 of 92 |
| Freeze-thaw days | 74/yr | 84/yr | 84 of 92 |
| Muggy nights (65°F+) | 65/yr | 38/yr | 6 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 Spencer County: freezing from November to February, heavy rain in February, March and April.
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