Marquette County, Michigan · Marquette
Water spreading, a burst pipe, sewage, mold or smoke? Call to be connected with a restoration company that serves Marquette, Ishpeming and Negaunee. 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.
Marquette County averages 101 nights a year at 20°F or colder, mostly November to April, and 38% of its homes predate 1960.
Heavy rain days of an inch or more come about 3.7 times a year here, most often in May. A sump pump that hasn't run since last season is a common weak point.
Sewage backups in Marquette County spike on heavy-rain days, about 3.7 a year, when sewer mains fill up and water finds the lowest drain.
Roof leaks here come from summer downpours and, with about 102 freeze-thaw days a year, from winter ice dams. Most show up as ceiling stains in the room below.
22% of occupied homes in Marquette County heat mainly with wood or propane, below the Michigan county median of 29%.
About 0 nights a year here stay at 65°F or warmer, so basements and crawl spaces can grow mold even without a leak.
Local risk profile
With 33,607 homes and around 67,112 residents, Marquette County is 1,809 square miles of Michigan's Upper Peninsula. Marquette is the county seat; Ishpeming, Negaunee and Harvey are the next largest communities. Half the homes here were built before 1971, half after.
59/100 Water Damage Risk Index: Elevated Marquette County ranks 23 of 83 Michigan counties. See the statewide ranking and method.The three factors where Marquette County ranks highest compared with other Michigan counties.
Marquette County gets more hard-freeze nights than most of Michigan. In the 2015–2024 record the county logged about 101 nights a year at or below 20°F (4th of 83) and 186 below freezing. Twenty degrees is roughly where uninsulated pipes start to freeze.
The longest cold spell was straight 41 days without the temperature rising above freezing, ending in March 2015. The coldest night reached about -25°F on February 1, 2019. Burst pipes usually show up when a spell like that breaks and the ice thaws.
Expect the hardest freezes in January, inside a season that runs November to April. 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 5 and end around May 23.
Rainfall is about average for Michigan. The county gets about 35.8 inches of rain and melted snow a year, with 3.7 days of an inch or more (46th of 83). Those downpours cluster in April, May and June, when sump pumps and gutters are tested hardest. The wettest day on record brought 2.47 inches on September 5, 2018. The worst three-day stretch dropped 4.12 inches, ending May 2, 2023, the kind of soaking that overwhelms sump pumps and storm sewers.
About 102 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 68% of the county's housing was built before 1980. That puts Marquette among the oldest housing stocks of Michigan's 83 counties.
38% 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.
Renters occupy 30% of homes. If you rent, the building is usually the landlord's to repair, but your belongings are only covered by renters insurance.
Beyond water
About 0 nights a year in Marquette County stay at 65°F or warmer, a sign of muggy summer air (83rd of 83 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 Marquette County it's 62% utility gas, 13% electric, 17% propane and 4% 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 Marquette County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Baraga and Iron get more pipe-freeze nights than Marquette. Houghton County has the oldest housing nearby, with 71% of homes built before 1980.
By the numbers
| Factor | Marquette | Michigan median | Rank |
|---|---|---|---|
| Homes built before 1960 | 38% | 32% | 27 of 83 |
| Homes built before 1980 | 68% | 58% | 15 of 83 |
| Homes built 2000 or later | 14% | 16% | 56 of 83 |
| Manufactured or mobile homes | 4.2% | 7.3% | 69 of 83 |
| Vacant homes | 16% | 20% | 50 of 83 |
| Wood or propane heat | 22% | 29% | 58 of 83 |
| Nights at 20°F or colder | 101/yr | 54/yr | 4 of 83 |
| Days with 1 inch+ of rain | 3.7/yr | 3.9/yr | 46 of 83 |
| Freeze-thaw days | 102/yr | 95/yr | 16 of 83 |
| Muggy nights (65°F+) | 0/yr | 10/yr | 83 of 83 |
Rank 1 is the highest value. Bars run from the lowest to the highest Michigan county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Marquette County: freezing from November to April, heavy rain in April, May and June.
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