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Winthrop, Iowa

11 topographic sheets cover this place, the earliest surveyed in 1903 and the latest in 1984. It stands in Byron Township. It lies in ZIP code area 50682. The Survey maps it on the Winthrop quadrangle. 823 people lived here at the 2020 count. It stands 1,053 feet above sea level.

Winthrop within Buchanan County

Population over time

2 figures

Winthrop fell from 850 to 823 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.

YearPeople Change
2010850
2020823-27 (-3%)

Topographic sheets covering this place

7 surveys from 11 printed sheets

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.

Fires near this place

1 since 2015

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Winthrop in 2015, burning about 65 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 burning1

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

DateCause SizeReported by Name on the report
19 October 2015Debris and open burning65 acresIowa Department of Natural Resourcesnot named

Settlements close enough to share some of these fires:

Every fire recorded in Buchanan County

Mines and quarries near this place

3 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Winthrop: 2 past producers, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
Rasmussen QuarryStone, Crushed/BrokenProducer
UnknownSand and Gravel, ConstructionPast Producer
UnknownSand and Gravel, ConstructionPast Producer

Every working recorded in Buchanan County

Storms near this place

23 since 1993

Regional context, not property-specific evidence. The National Weather Service names Winthrop in 23 storm reports between 1993 and 2025: 10 thunderstorm wind, 5 tornado, 5 flash flood, 3 hail. No death or injury is recorded in these reports. 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.

WhenEvent Place namedHarm What the report says
June 2001Tornado (F1)Winthrop$125,000no account filed
June 1998Thunderstorm WindWinthrop$30,000Gusty thunderstorm winds ripped portions of the roof off a building supply company causing extensive damage to the building, office equipment, and building materials. Nearly all of the office equipment was ruined due to water damage along with the wind damage.
June 2001Tornado (F0)Winthrop$10,000no account filed
April 2004Thunderstorm WindWinthrop$5,000no account filed
August 1993HailWinthrop$500no account filed
July 2025Flash FloodWinthrop-Law Enforcement Officers report water flowing over the roadway.
July 2024Thunderstorm WindWinthrop-The Emergency Manager reported a tree blown down on a car. The time of the event was estimated using radar.
July 2022Tornado (EFU)Winthrop-Video from a Winthrop Fire Department Spotter captured a brief tornado just west of Winthrop. The tornado occurred in open farm land, and there was no observable damage to assign an EF-scale rating. Time estimated by radar. Assistance from Buchanan County Emergency Management is greatly appreciated.
July 2020Thunderstorm WindWinthrop-Emergency management reports a large swath of corn blown down near Winthrop, due to straight line winds.
October 2018Flash FloodWinthrop-Flash flooding caused washouts of gravel roads, and closed some roads in the Winthrop area.
June 2015Thunderstorm WindWinthrop-Tree branches between 6 and 10 inches in diameter were blown down.
May 2013Flash FloodWinthrop-A trained spotter reported streets flooded and water onto lawns, along with creeks out of their banks. There was also considerable flooding of fields.
July 2013Thunderstorm WindWinthrop-Wind gusts were estimated to be 60 mph in Winthrop, IA at 705 pm CDT July 22.
July 2012Thunderstorm WindWinthrop-The public reported tree limbs up to 5 inches in diameter were down near Winthrop.
August 2010Flash FloodWinthrop-Heavy rains resulted in some flash flooding of several intersections along County Road W45 along Buffalo Creek from Wintrop, IA to Monti, IA during the afternoon of August 13.
August 2005Tornado (F0)Winthrop-Rated high F0 with winds estimated at 57 knots (65 mph). Based on areal video footage from KCRG TV Chopper 9.
June 2002Flash FloodWinthrop-Buffalo Creek flooded with water inundating portions of County Road 939 East. 2.7 inches of rain was measured in about an hours time.
April 2023HailWinthrop-no account filed
April 2023HailWinthrop-no account filed
June 2018Thunderstorm WindWinthrop-no account filed
June 2001Tornado (F0)Winthrop-no account filed
June 2000Thunderstorm WindWinthrop-no account filed
August 1998Thunderstorm WindWinthrop-no account filed

Every storm recorded in Buchanan County

Nearest settlements

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

Map PlaceDistance Sheets
Doris4.3 miles11
Quasqueton5.6 miles11
Gatesville5.6 miles11
Independence8.2 miles11
Monti8.4 miles11
Rowley9.2 miles11
Lamont9.9 miles13
Aurora10.0 miles13

Elsewhere

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.

Wikipedia article on WinthropAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q280423The structured record the population and elevation above come from. Public domain (CC0).

Provenance

This settlement is recorded in the Geographic Names Information System as feature 463139. 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.