Decorah, Iowa

• Open map evidence
• Research guide
• Winneshiek County

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register 12 of 23 shown

• Cooley-Whitney Houselisted 1980
• Decorah Commercial Historic Districtlisted 2017
• Decorah Ice Cavelisted 1978
• Decorah Municipal Bathhouse and Swimming Poollisted 2012
• Decorah Woolen Milllisted 2001
• Ellsworth-Porter Houselisted 1975
• Highlandville Schoollisted 2014
• Koren Librarylisted 1984
• Locust Schoollisted 1978
• Luther College Farmlisted 1979
• Milwaukee and St. Paul Railway Combination Depotlisted 2016
• Steyer Bridgelisted 1983

Every listing in Winneshiek County

Decorah fell from 8,127 to 7,587 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1906 USGS Decorah quadrangle1:125000, 3 printings
• 1958 USGS La Crosse quadrangle1:250000, 2 printings
• 1961 USGS La Crosse quadrangle1:250000
• 1965 USGS La Crosse quadrangle1:250000
• 1975 USGS Decorah 2 SE quadrangle1:24000
• 1976 USGS La Crosse quadrangle1:250000
• 1981 USGS Decorah quadrangle1:24000
• 1985 USGS Decorah quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 21 fires within 5 miles of Decorah between 2006 and 2020, burning about 211 acres in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Nordness
• Freeport
• Calmar
• Conover
• Frankville
• Nasset

Every fire recorded in Winneshiek County

Regional context, not property-specific evidence. The federal mineral resources record lists 25 workings within 5 miles of Decorah: 16 past producers, 8 producers, 1 occurrence. 8 still produce. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Lead. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Winneshiek County

Regional context, not property-specific evidence. The National Weather Service names Decorah in 91 storm reports between 1994 and 2025: 40 thunderstorm wind, 38 hail, 3 flood, 3 flash flood. The reports record 2 injuries. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Winneshiek County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 455839. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.