Blackford County, Indiana · Hartford City
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Pipes freeze in Blackford County on about 34 nights a year, mostly November to March. Older homes, 51% of the stock here, are most at risk.
Basements flood here mostly in July. Blackford County averages 5.7 days a year with an inch of rain or more.
Sewage backups in Blackford County spike on heavy-rain days, about 5.7 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 82 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
17% of occupied homes in Blackford County heat mainly with wood or propane, close to the Indiana county median of 17%.
Muggy summer nights, lows of 65°F or more, come about 36 times a year in Blackford County. Mold after a leak spreads fastest from June through August.
Local risk profile
Blackford County covers 165 square miles of northeast Indiana, with about 11,950 residents and 5,853 homes. Hartford City is the county seat; Montpelier, Shamrock Lakes and Roll are the next largest communities. Half the homes here were built before 1960, half after.
53/100 Water Damage Risk Index: Elevated Blackford County ranks 35 of 92 Indiana counties. See the statewide ranking and method.The three factors where Blackford County ranks highest compared with other Indiana counties.
Pipe-freeze risk in Blackford County sits near the middle of the state. It averaged 109 freezing nights a year over 2015–2024, 34 of them at 20°F or colder, cold enough for pipes in outside walls and crawl spaces to freeze. Among 92 Indiana counties that's 37th.
Cold snaps are the real risk. The worst in the record lasted 19 days below freezing (ending March 2015), and the low bottomed out near -14°F on January 2, 2018.
Expect the hardest freezes in January, inside a season that runs November to March. 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 Oct 23 and end around Apr 23.
Blackford gets fewer downpours than most Indiana counties, but they still fill basements. The county gets about 40 inches of rain and melted snow a year, with 5.7 days of an inch or more (84th of 92). Those downpours cluster in April, June and July, when sump pumps and gutters are tested hardest. The wettest day on record brought 2.26 inches on June 27, 2015. The worst three-day stretch dropped 3.2 inches, ending December 29, 2015, the kind of soaking that overwhelms sump pumps and storm sewers.
About 82 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 72% of the county's housing was built before 1980. That puts Blackford among the oldest housing stocks of Indiana's 92 counties.
51% 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.
12% of homes were vacant at survey time. A leak in an empty rental or seasonal house can run for days before anyone notices, which is why those losses tend to be larger.
Beyond water
Blackford County averages 36 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in July. 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 expectHeating fuel matters for fire risk. In Blackford County it's 38% utility gas, 45% electric, 13% propane and 4% 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 Blackford County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Wells gets more pipe-freeze nights than Blackford. All of its neighbors see more heavy-rain days. Grant County has the oldest housing nearby, with 73% of homes built before 1980.
By the numbers
| Factor | Blackford | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 51% | 35% | 8 of 92 |
| Homes built before 1980 | 72% | 58% | 13 of 92 |
| Homes built 2000 or later | 9.1% | 18% | 87 of 92 |
| Manufactured or mobile homes | 6.8% | 6.4% | 44 of 92 |
| Vacant homes | 12% | 9.2% | 23 of 92 |
| Wood or propane heat | 17% | 17% | 49 of 92 |
| Nights at 20°F or colder | 34/yr | 33/yr | 37 of 92 |
| Days with 1 inch+ of rain | 5.7/yr | 7.8/yr | 84 of 92 |
| Freeze-thaw days | 82/yr | 84/yr | 53 of 92 |
| Muggy nights (65°F+) | 36/yr | 38/yr | 51 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 Blackford County: freezing from November to March, heavy rain in April, June and July.
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