Listed on the National Register of Historic Places in 1981.
From the record
“The Mahaska County Courthouse in Oskaloosa, Iowa, United States, was built in 1886. It was individually listed on the National Register of Historic Places in 1981 as a part of the County Courthouses in Iowa Thematic Resource.”
Wikipedia article Mahaska County Courthouse, CC BY-SA 4.0.
One of 49 National Register listings published here for Mahaska County · listed in 1981 · category: Building.
National Register reference number.81000255- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Fires near this property
26 since 2013
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 26 fires within 5 miles of Mahaska County Courthouse
between 2013 and 2017, burning about 464 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.
Reported cause
Fires
Debris and open burning
23
Missing data/not specified/undetermined
2
Smoking
1
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
12 workings within 5 miles of Mahaska County Courthouse: 11 past producers, 1 producer.
1 still produces. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Zinc, Clay, Bituminous. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Oskaloosa, the town this property stands in, in 137 storm reports between 1993 and 2024: 53 thunderstorm wind, 30 hail, 26 heavy rain, 11 flood.
The reports record 1 injury. 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.
Emergency Manager reported widespread tree damage across town, mostly branches and limbs broken off. Numerous areas remained without power as well. Time radar estimated.
A weak cold front sagged southeast into Iowa during the day as an upper level disturbance drifted east into the state. The air mass was moist and quiet unstable. Thunderstorms developed during the afternoon over the east two thirds of the state. One storm became severe as it moved through Mahaska County. High winds were reported two times in Oskaloosa. The winds resulted in spotty damage, downed trees, and knocked out power in the Oskaloosa area.
Mahaska County emergency manager reported many instances of tree damage and power outages across the county. Time estimated from radar, via the center of the county.
No historic map-sheet match is published
for this property yet. That does not mean no map exists. This record needs
a coordinate-quality review before it can be joined to a sheet boundary.
Browse the county's mapped places while that work is
pending.
Listed places nearby
6 within 8 miles
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
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.
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