Gutters, roofing, siding and windows in ZIP code 55115, Mahtomedi, MN

• Gutters in ZIP code 55115

  Washington County averages 34.1 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 55115

  40 of the 79 hail events on record within 10 miles of the center of ZIP code 55115 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 55115

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55115 from 2016 through September 22, 2025 was 64 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55115

  36% of homes in ZIP code 55115 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 55115 is filed here under Mahtomedi, in Washington County, Minnesota; its center is about 31 miles north of our Farmington office. Our address file holds 3,477 address points in ZIP code 55115. ZIP code 55115 reaches into 3 cities and towns on our pages: Mahtomedi (3,136 address points), Grant (183) and Pine Springs (127). Mahtomedi holds the most of its address points, so this page sits under Mahtomedi.

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

ZIP code 55115 has 3,408 housing units, and 75% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 9% are attached homes such as townhomes.

The median home in ZIP code 55115 was built in 1988. 36% of homes in ZIP code 55115 were built before 1980, and 25% were built in 2000 or later. The most common building period is 1990–1999, with 718 homes.

83% of occupied homes in ZIP code 55115 are owner-occupied. The median owner-occupied home in ZIP code 55115 is valued at $481,900. Among occupied homes in ZIP code 55115, 87% heat with utility gas, 9% with electricity and 2% with bottled or tank gas.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55115.

The nearest other ZIP codes we serve, measured center to center, are 55110 in White Bear Lake (3 miles northwest), 55109 in Maplewood (5.2 miles southwest), 55082 in Stillwater (5.4 miles east), 55128 in Oakdale (5.5 miles south), 55042 in Lake Elmo (5.7 miles southeast) and 55127 in Vadnais Heights (6.5 miles west). The table sets ZIP code 55115 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 79 hail events, 25 thunderstorm-wind events and 2 tornadoes within 10 miles of the center of ZIP code 55115 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 3 inches on July 26, 2019, near Shoreview. 40 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55115 was 64 mph wind on August 24, 2021, less than 1 mile away near Willernie. The most recent hail event within 10 miles of the center of ZIP code 55115 was on September 21, 2025: 1.25 in hail near Woodbury. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55115 was on July 28, 2025, near Lino Lakes. The busiest year was 2022, with 54 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 Mahtomedi, which is in Washington County; the ratings below are that county's. Washington County scores 94.8 of 100 for hail in FEMA's National Risk Index, which ranks 6th of 87 Minnesota counties. Washington County scores 98.3 of 100 for strong wind in FEMA's National Risk Index, which ranks 5th of 87 Minnesota counties. Washington County scores 76.6 of 100 for winter weather in FEMA's National Risk Index, which ranks 30th of 87 Minnesota counties. Of the perils listed here, the highest score in Washington County is for strong wind, at 98.3 of 100.

Washington County averages 34.1 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in Washington County is 45.1°F.

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

Our Farmington office is at 821 3rd St, Farmington, MN 55024, about 31 miles from the center of ZIP code 55115. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (651) 998-8500.

• Farmington office: address, hours and map