Gutters, roofing, siding and windows in ZIP code 55751, Mountain Iron, MN

• Gutters in ZIP code 55751

  St. Louis County averages 29.6 inches of precipitation a year (NOAA 1991–2020 normals). One inch of rain on 1,000 square feet of roof is about 623 gallons of water for the gutters to carry.

• Roofing in ZIP code 55751

  3 of the 17 hail events on record within 10 miles of the center of ZIP code 55751 from 2016 through March 31, 2026 had hail 1.5 inches or larger. The National Weather Service counts hail of 1 inch or larger as severe.

• Siding in ZIP code 55751

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55751 from 2016 through September 22, 2025 was 69 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55751

  62% of homes in ZIP code 55751 were built before 1980. A home built before 1980 was built before the energy codes in force today were written.

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025); American Community Survey 2023, 5-year; NOAA 1991–2020 climate normals.

ZIP code 55751 is filed here under Mountain Iron, in St. Louis County, Minnesota; its center is about 50 miles northwest of our Duluth office. Our address file holds 836 address points in ZIP code 55751. ZIP code 55751 reaches into 2 cities and towns on our pages: Mountain Iron (54 address points) and Iron Junction (54). Mountain Iron holds the most of its address points, so this page sits under Mountain Iron.

Source: Census ZIP Code Tabulation Areas and address points (a ZIP code can also take in land outside any city or town).

ZIP code 55751 has 686 housing units, and 82% of them are single-family detached homes (American Community Survey 2023, 5-year). Mobile homes make up 18% of the housing units.

The median home in ZIP code 55751 was built in 1975. 62% of homes in ZIP code 55751 were built before 1980, and 19% were built in 2000 or later. The most common building period is 1970–1979, with 162 homes.

96% of occupied homes in ZIP code 55751 are owner-occupied. The median owner-occupied home in ZIP code 55751 is valued at $182,900. Among occupied homes in ZIP code 55751, 2% heat with utility gas, 15% with electricity, 51% with bottled or tank gas, 16% with fuel oil and 13% with wood.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55751.

The nearest other ZIP codes we serve, measured center to center, are 55713 in Buhl (8.1 miles northwest), 55734 in Eveleth (8.2 miles east), 55768 in Mountain Iron (8.4 miles north), 55746 in Hibbing (14 miles west), 55741 in Gilbert (14 miles east) and 55719 in Chisholm (14 miles northwest). The table sets ZIP code 55751 beside the 8 ZIP codes nearest to it, using the same Census figures for each.

Source: American Community Survey 2023, 5-year, by ZIP Code Tabulation Area; distances are straight lines between ZIP code centers.

The NOAA Storm Events Database records 17 hail events, 17 thunderstorm-wind events and 1 tornado within 10 miles of the center of ZIP code 55751 from 2016 through March 31, 2026 for hail and through September 22, 2025 for thunderstorm wind and tornadoes. The largest hail on record there in that period was 1.75 inches on June 12, 2024, near Mountain Iron. 3 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55751 was 0.75 in hail on August 20, 2020, 1.9 miles away near Iron Junction. The most recent hail event within 10 miles of the center of ZIP code 55751 was on June 12, 2024: 1 in hail near Leonidas. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55751 was on July 27, 2025, near Buhl. The strongest thunderstorm wind recorded within 10 miles of the center of ZIP code 55751 in that period was 69 mph. The busiest year was 2024, with 9 events in all.

Apart from those database entries, NOAA weather radar indicated hail of 1 inch or larger over Mountain Iron on 3 days from January 2025 on, most recently July 27, 2026. A radar indication is an estimate, not a report from the ground, and the counts and tables on this page do not include it.

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025); NOAA MRMS radar hail estimates (for the city of Mountain Iron).

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025).

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025).

This page is filed under Mountain Iron, which is in St. Louis County; the ratings below are that county's. St. Louis County scores 84 of 100 for hail in FEMA's National Risk Index, which ranks 16th of 87 Minnesota counties. St. Louis County scores 71.3 of 100 for strong wind in FEMA's National Risk Index, which ranks 37th of 87 Minnesota counties. St. Louis County scores 98 of 100 for winter weather in FEMA's National Risk Index, which ranks 1st of 87 Minnesota counties. Of the perils listed here, the highest score in St. Louis County is for cold wave, at 99.4 of 100.

St. Louis County averages 29.6 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in St. Louis County is 37.8°F.

Source: FEMA National Risk Index, 2026 release; rank among the state's counties computed from the scores; NOAA 1991–2020 climate normals.

Our Duluth office is at 314 W Superior St #913, Duluth, MN 55802, about 50 miles from the center of ZIP code 55751. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (218) 833-2997.

• Duluth office: address, hours and map