Adams County, Indiana · Decatur
Water spreading, a burst pipe, sewage, mold or smoke? Call to be connected with a restoration company that serves Decatur, Berne and Geneva. Start the steps below while you wait.
Answered 24/7 by a participating local provider. We're a referral service and don't do the work ourselves. How it works
Start here
Pick the closest match. These steps limit the damage and protect your insurance claim. Skip anything that isn't safe.
Pipes freeze in Adams County on about 35 nights a year, mostly November to March. Older homes, 40% of the stock here, are most at risk.
Basements flood here mostly in July. Adams County averages 6.2 days a year with an inch of rain or more.
40% 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.
Adams County's wettest day in the 2015–2024 record brought 2.79 inches, and about 81 freeze-thaw days a year mean ice dams in some winters.
16% of occupied homes in Adams County heat mainly with wood or propane, close to the Indiana county median of 17%.
With 33 muggy nights a year, mold in Adams County can appear within days of a leak. Dry first, then clean.
Local risk profile
With 13,308 homes and around 36,227 residents, Adams County is 339 square miles of northeast Indiana. Decatur is the county seat; Berne, Geneva and Monroe are the next largest communities. Half the homes here were built before 1971, half after.
51/100 Water Damage Risk Index: Elevated Adams County ranks 41 of 92 Indiana counties. See the statewide ranking and method.The three factors where Adams County ranks highest compared with other Indiana counties.
Adams County gets more hard-freeze nights than most of Indiana. From 2015–2024 it averaged 35 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 112 nights at or below 32°F. That ranks 30th of 92 counties.
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 -15°F on January 31, 2019.
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 27 and end around Apr 24.
Adams gets fewer downpours than most Indiana counties, but they still fill basements. About 6.2 days a year bring an inch or more (69th of 92), most often in July, out of 40.7 inches of total precipitation. On June 27, 2015, 2.79 inches fell in a single day. The worst three-day stretch dropped 4.11 inches, ending June 28, 2015, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 81 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
62% of homes in Adams County predate 1980, close to the Indiana county median of 58.2%, which ranks 36th of Indiana's 92 counties.
In Adams County 40% of homes are older than 1960. If yours is one of them and the plumbing has never been replaced, expect galvanized steel supply pipe and cast iron drain lines, the two materials most likely to fail quietly.
22% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
Beyond water
About 33 nights a year in Adams County stay at 65°F or warmer, a sign of muggy summer air (63rd of 92 counties). June is the wettest month. 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 expectHeating fuel matters for fire risk. In Adams County it's 47% utility gas, 29% electric, 13% propane and 3% 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 Adams County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Allen gets more pipe-freeze nights than Adams. Jay County has the oldest housing nearby, with 73% of homes built before 1980.
By the numbers
| Factor | Adams | Indiana median | Rank |
|---|---|---|---|
| Homes built before 1960 | 40% | 35% | 29 of 92 |
| Homes built before 1980 | 62% | 58% | 36 of 92 |
| Homes built 2000 or later | 16% | 18% | 60 of 92 |
| Manufactured or mobile homes | 1.4% | 6.4% | 90 of 92 |
| Vacant homes | 6.8% | 9.2% | 68 of 92 |
| Wood or propane heat | 16% | 17% | 51 of 92 |
| Nights at 20°F or colder | 35/yr | 33/yr | 30 of 92 |
| Days with 1 inch+ of rain | 6.2/yr | 7.8/yr | 69 of 92 |
| Freeze-thaw days | 81/yr | 84/yr | 62 of 92 |
| Muggy nights (65°F+) | 33/yr | 38/yr | 63 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 Adams County: freezing from November to March, heavy rain in May, 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