Gutters, roofing, siding and windows in ZIP code 55803, Duluth, MN

• Gutters in ZIP code 55803

  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 55803

  5 of the 14 hail events on record within 10 miles of the center of ZIP code 55803 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 55803

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55803 from 2016 through September 22, 2025 was 71 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55803

  63% of homes in ZIP code 55803 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 55803 is filed here under Duluth, in St. Louis County, Minnesota; its center is about 17 miles north of our Duluth office. Our address file holds 8,723 address points in ZIP code 55803. ZIP code 55803 reaches into 2 cities and towns on our pages: Duluth (3,243 address points) and Rice Lake (1,933). Duluth holds the most of its address points, so this page sits under Duluth.

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

ZIP code 55803 has 8,690 housing units, and 89% of them are single-family detached homes (American Community Survey 2023, 5-year). Mobile homes make up 2% of the housing units.

The median home in ZIP code 55803 was built in 1969. 63% of homes in ZIP code 55803 were built before 1980, and 18% were built in 2000 or later. The most common building period is 1939 or earlier, with 1,704 homes.

84% of occupied homes in ZIP code 55803 are owner-occupied. The median owner-occupied home in ZIP code 55803 is valued at $300,400. Among occupied homes in ZIP code 55803, 46% heat with utility gas, 15% with electricity, 29% with bottled or tank gas, 5% with fuel oil and 4% with wood.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55803.

The nearest other ZIP codes we serve, measured center to center, are 55804 in Duluth (9.7 miles southeast), 55811 in Duluth (15 miles southwest), 55812 in Duluth (16 miles south), 55805 in Duluth (16 miles south), 55806 in Duluth (19 miles south) and 55802 in Duluth (20 miles south). The table sets ZIP code 55803 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 14 hail events, 24 thunderstorm-wind events and 1 tornado within 10 miles of the center of ZIP code 55803 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 1.5 inches on July 27, 2023, near Rice Lake. 5 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55803 was 58 mph wind on August 5, 2019, 2.1 miles away near Rice Lake. The most recent hail event within 10 miles of the center of ZIP code 55803 was on July 27, 2023: 1.5 in hail near Rice Lake. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55803 was on June 25, 2022, near Rice Lake. The strongest thunderstorm wind recorded within 10 miles of the center of ZIP code 55803 in that period was 71 mph. The busiest year was 2020, with 14 events in all.

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).

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 Duluth, 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 17 miles from the center of ZIP code 55803. 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