Emmet County, Iowa · Estherville
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With 58% of homes built before 1960 and about 81 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
May brings the most downpours to Emmet County, part of 6 heavy-rain days a year. Check the sump first.
Backups often follow heavy rain, which Emmet County gets about 6 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
In Emmet County, 3.32 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
19% of occupied homes in Emmet County heat mainly with wood or propane, below the Iowa county median of 22.1%.
Muggy summer nights, lows of 65°F or more, come about 18 times a year in Emmet County. Mold after a leak spreads fastest from June through August.
Local risk profile
With 4,520 homes and around 9,262 residents, Emmet County is 396 square miles of northwest Iowa. Estherville is the county seat; Armstrong, Ringsted and Dolliver are the next largest communities. It has some of the oldest housing in the state: the median home went up in 1955.
62/100 Water Damage Risk Index: Elevated Emmet County ranks 20 of 99 Iowa counties. See the statewide ranking and method.The three factors where Emmet County ranks highest compared with other Iowa counties.
Emmet County gets more hard-freeze nights than most of Iowa. In the 2015–2024 record the county logged about 81 nights a year at or below 20°F (1st of 99) and 155 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
On January 30, 2019 the low fell to about -28°F, and in the stretch ending March 2019 the county went 33 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
Most freezing nights fall from November to March, 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 Oct 13 and end around Apr 28.
Emmet gets fewer downpours than most Iowa counties, but they still fill basements. The county gets about 33.2 inches of rain and melted snow a year, with 6 days of an inch or more (86th of 99). Those downpours cluster in May, June and August, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.32 inches on September 20, 2018. The worst three-day stretch dropped 5.52 inches, ending September 21, 2018, the kind of soaking that overwhelms sump pumps and storm sewers.
The temperature crosses 32°F in both directions on roughly 90 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
88% of homes in Emmet County predate 1980, above the Iowa county median of 72.8%, which ranks 1st of Iowa's 99 counties.
In Emmet County 58% 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.
Beyond water
Summer nights that don't drop below 65°F, a good marker of humid air, come about 18 times a year here, below the Iowa county median of 29. 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 Emmet County it's 64% utility gas, 16% electric, 19% propane and under 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 Emmet County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Emmet gets more pipe-freeze nights than any of its neighbors. All of its neighbors see more heavy-rain days. Its housing is the oldest in the area by share of homes built before 1980.
By the numbers
| Factor | Emmet | Iowa median | Rank |
|---|---|---|---|
| Homes built before 1960 | 58% | 48% | 8 of 99 |
| Homes built before 1980 | 88% | 73% | 1 of 99 |
| Homes built 2000 or later | 7.7% | 13% | 91 of 99 |
| Manufactured or mobile homes | 3.2% | 3.2% | 47 of 99 |
| Vacant homes | 10% | 9.5% | 38 of 99 |
| Wood or propane heat | 19% | 22% | 71 of 99 |
| Nights at 20°F or colder | 81/yr | 62/yr | 1 of 99 |
| Days with 1 inch+ of rain | 6/yr | 7.1/yr | 86 of 99 |
| Freeze-thaw days | 90/yr | 94/yr | 84 of 99 |
| Muggy nights (65°F+) | 18/yr | 29/yr | 89 of 99 |
Rank 1 is the highest value. Bars run from the lowest to the highest Iowa county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Emmet County: freezing from November to March, heavy rain in May, June 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