BlockBefore

Knoxville, Iowa

11 topographic sheets cover this place, the earliest surveyed in 1909 and the latest in 1984. It stands in Knoxville Township. It lies in ZIP code area 50138. The Survey maps it on the Knoxville quadrangle. 7,595 people lived here at the 2020 count. It stands 909 feet above sea level.

Knoxville within Marion County

On record in Knoxville

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 5 records

Population over time

2 figures

Knoxville grew from 7,313 to 7,595 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
20107,313
20207,595+282 (+4%)

Topographic sheets covering this place

8 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

7 since 2015

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 7 fires within 5 miles of Knoxville in 2015, burning about 14 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 burning6
Missing data/not specified/undetermined1

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
5 April 2015Debris and open burning4.0 acresIowa Department of Natural Resourcesnot named
5 April 2015Debris and open burning1.0 acresIowa Department of Natural Resourcesnot named
11 April 2015Debris and open burning2.0 acresIowa Department of Natural Resourcesnot named
26 March 2015Debris and open burning1.0 acresIowa Department of Natural Resourcesnot named
21 March 2015Debris and open burning1.0 acresIowa Department of Natural Resourcesnot named
18 March 2015Missing data/not specified/undeterminedunder an acreNeal Smith National Wildlife RefugeCLASS B ROAD FIRE
11 March 2015Debris and open burning5.0 acresIowa Department of Natural Resourcesnot named

Settlements close enough to share some of these fires:

Every fire recorded in Marion 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 Knoxville: 3 past producers. None of them still produces. What was taken out: Clay, Zinc. 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
Drill HoleZincPast ProducerSphalerite
Iowa Brick and Tile Co. PitClayPast Producer
Wright BrickyardClayPast Producer

Every working recorded in Marion County

Storms near this place

60 of 132 shown

Regional context, not property-specific evidence. The National Weather Service names Knoxville in 132 storm reports between 1996 and 2025: 44 thunderstorm wind, 40 hail, 26 heavy rain, 9 flash flood. 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 1997Thunderstorm WindKnoxville$1,000,000no account filed
July 2015Flash FloodKnoxville$250,000Emergency Manager reported several feet of water in VA hospital building.
June 2000Flash FloodKnoxville$200,000no account filed
May 2007Flash FloodKnoxville$150,000no account filed
June 1998Thunderstorm WindKnoxville$150,000no account filed
June 2011Flash FloodKnoxville$100,000EM reported several streets flooding with 8 to 10 inches of flowing water.
July 2008HailKnoxville$100,000no account filed
June 1998Flash FloodKnoxville$100,000no account filed
April 2012Thunderstorm WindKnoxville$75,000Trees were blown down along with dime size hail reported.
September 2000Thunderstorm WindKnoxville$75,000no account filed
July 2014Flash FloodKnoxville$50,000Law enforcement reported water on the roads in front of the Knoxville Racetrack The water was up to the bottoms of the cars.
June 2008Flash FloodKnoxville$50,000Roads were closed at McKimber Drive and 170th with water running over the road.
July 2011LightningKnoxville$50,000no account filed
April 2010FloodKnoxville$50,000no account filed
June 1998FloodKnoxville$50,000no account filed
May 1998FloodKnoxville$50,000no account filed
May 1996FloodKnoxville$50,000no account filed
June 1998FloodKnoxville$40,000no account filed
July 2015Thunderstorm WindKnoxville$30,000A large tree was down on a power line.
June 2017Thunderstorm WindKnoxville$25,000Emergency manager reported upwards of 25 or so trees and or limbs downed onto roadways, with one on top of a passenger car. Power lines were also down around the area and a transformer was on fire from sustained damage.
July 2010Flash FloodKnoxville$25,000Four feet of water in some city streets. Cars were stalled.
July 1998FloodKnoxville$25,000no account filed
May 2017Thunderstorm WindKnoxville$20,000Emergency manager reported trees downed in Knoxville. One fell on a car and crushed it.
July 2016Flash FloodKnoxville$20,000Law Enforcement reported water covering Highway 14 outside of the Knoxville Raceway. Time estimated from radar, delayed report.
July 2015LightningKnoxville$20,000Lightning struck a vehicle starting it on fire.
July 2015LightningKnoxville$20,000Lightning struck an LP tank and freon line starting a fire.
March 2023Thunderstorm WindKnoxville$15,000Large branch down on a home.
August 2018Thunderstorm WindKnoxville$15,000Emergency manager reported several trees and power lines down throughout town. Time estimated from radar.
June 2018Thunderstorm WindKnoxville$15,000Emergency manager reported trees and power lines downed in Knoxville.
July 2015LightningKnoxville$15,000Lightning struck a telephone pole starting a fire.
May 2011Thunderstorm WindKnoxville$15,000Numerous trees reported down in Knoxville.
July 2011Thunderstorm WindKnoxville$15,000Several reports of power lines down in the city near the racetrack.
June 2011Thunderstorm WindKnoxville$15,000Trees down in the town square of Knoxville.
June 1998Thunderstorm WindKnoxville$15,000no account filed
June 2018Thunderstorm WindKnoxville$10,000Emergency manager reported several large trees down in Knoxville.
May 2011Thunderstorm WindKnoxville$10,000Semi blown off of Highway 14 about 1 mile north of Knoxville.
August 2011Thunderstorm WindKnoxville$10,000Walmart Supercenter had a large window blown out by high winds.
June 2011Thunderstorm WindKnoxville$10,000Power lines and poles down.
April 2010HailKnoxville$10,000no account filed
April 2010HailKnoxville$10,000no account filed
June 2005Thunderstorm WindKnoxville$10,000no account filed
August 2003Thunderstorm WindKnoxville$10,000no account filed
June 2000Thunderstorm WindKnoxville$10,000no account filed
July 1999HailKnoxville$10,000no account filed
May 1998HailKnoxville$10,000no account filed
May 1996HailKnoxville$10,000no account filed
March 2025Thunderstorm WindKnoxville$7,500Power pole snapped off in Knoxville. Time estimated.
July 2019Thunderstorm WindKnoxville$5,000Trained spotter reported two 4 inch diameter maple branches down. Also noted multiple reports of tree damage across town. Time estimated from radar.
July 2009Thunderstorm WindKnoxville$5,000Power lines were down just west of Knoxville.
June 2011Thunderstorm WindKnoxville$5,000no account filed
April 2010HailKnoxville$5,000no account filed
June 2007Thunderstorm WindKnoxville$5,000no account filed
September 2005Thunderstorm WindKnoxville$5,000no account filed
August 2004Thunderstorm WindKnoxville$5,000no account filed
August 2004Thunderstorm WindKnoxville$5,000no account filed
May 2003Thunderstorm WindKnoxville$5,000no account filed
May 2003HailKnoxville$5,000no account filed
May 2003Thunderstorm WindKnoxville$5,000no account filed
June 2001HailKnoxville$5,000no account filed
July 2000Thunderstorm WindKnoxville$5,000no account filed

Every storm recorded in Marion 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
Donley Station (historical)3.6 miles10
Donnelley3.7 miles10
Flagler4.6 miles11
Pershing6.8 miles11
Cordova (historical)7.2 miles11
Eifield (historical)7.5 miles11
Attica8.0 miles10
Durham8.1 miles11

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 KnoxvilleAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q986176The 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 458137. 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.