Gutters, roofing, siding and windows in ZIP code 55904, Rochester, MN

• Gutters in ZIP code 55904

  Olmsted County averages 36.7 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 55904

  9 of the 51 hail events on record within 10 miles of the center of ZIP code 55904 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 55904

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55904 from 2016 through September 22, 2025 was 81 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55904

  53% of homes in ZIP code 55904 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 55904 is filed here under Rochester, in Olmsted County, Minnesota; its center is about 9.9 miles southeast of our Rochester office. ZIP code 55904 reaches into 2 cities and towns on our pages: Rochester and Marion. Rochester holds the largest part of it, so this page sits under Rochester.

• Marion

Source: Census ZIP Code Tabulation Area, county and place boundaries (a ZIP code can also take in land outside any city or town).

ZIP code 55904 has 12,984 housing units, and 62% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 7% are attached homes such as townhomes. Mobile homes make up 3% of the housing units.

The median home in ZIP code 55904 was built in 1977. 53% of homes in ZIP code 55904 were built before 1980, and 30% were built in 2000 or later. The most common building period is 1939 or earlier, with 2,165 homes.

66% of occupied homes in ZIP code 55904 are owner-occupied. The median owner-occupied home in ZIP code 55904 is valued at $237,200. Among occupied homes in ZIP code 55904, 71% heat with utility gas, 21% with electricity and 6% with bottled or tank gas.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55904.

The nearest other ZIP codes we serve, measured center to center, are 55902 in Rochester (5.8 miles west), 55934 in Eyota (7.2 miles northeast), 55976 in Stewartville (8 miles southwest), 55901 in Rochester (9.4 miles northwest), 55906 in Rochester (10 miles north) and 55920 in Byron (12 miles west). The table sets ZIP code 55904 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 51 hail events, 76 thunderstorm-wind events and 5 tornadoes within 10 miles of the center of ZIP code 55904 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 16, 2017, near Stewartville. 9 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55904 was 1 in hail on May 19, 2022, 1.2 miles away near Marion. The most recent hail event within 10 miles of the center of ZIP code 55904 was on August 27, 2025: 1 in hail near Stewartville. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55904 was on July 28, 2025, near Rochester. The strongest thunderstorm wind recorded within 10 miles of the center of ZIP code 55904 in that period was 81 mph. The busiest year was 2017, with 28 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 Rochester, which is in Olmsted County; the ratings below are that county's. Olmsted County scores 83.4 of 100 for hail in FEMA's National Risk Index, which ranks 17th of 87 Minnesota counties. Olmsted County scores 70.1 of 100 for strong wind in FEMA's National Risk Index, which ranks 38th of 87 Minnesota counties. Olmsted County scores 83.3 of 100 for winter weather in FEMA's National Risk Index, which ranks 17th of 87 Minnesota counties. Of the perils listed here, the highest score in Olmsted County is for cold wave, at 92.8 of 100.

Olmsted County averages 36.7 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in Olmsted County is 44.6°F.

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

Our Rochester office is at 3470 55th St NW, Rochester, MN 55901, about 9.9 miles from the center of ZIP code 55904. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (507) 606-2707.

• Rochester office: address, hours and map