Irwin, Iowa
8 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1980. It stands in Jefferson Township. It lies in ZIP code area 51446. The Survey maps it on the Irwin quadrangle. 319 people lived here at the 2020 count. It stands 1,289 feet above sea level.
On record in Irwin
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 2 records
Irwin Consolidated Schoollisted 2002- Pleasant View Stock Farm Historic Districtlisted 2019
Population over time
2 figuresIrwin fell from 341 to 319 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.
| Year | People | Change |
|---|---|---|
| 2010 | 341 | |
| 2020 | 319 | -22 (-6%) |
Topographic sheets covering this place
5 surveys from 8 printed sheetsMatched 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.
- 1954 USGS Omaha quadrangle1:250000, 3 printings
- 1957 USGS Omaha quadrangle1:250000
- 1958 USGS Omaha quadrangle1:250000, 2 printings
- 1978 USGS Irwin quadrangle1:24000
- 1980 USGS Harlan quadrangle1:100000
Fires near this place
9 since 2007Regional context, not property-specific evidence. The federal wildfire occurrence database lists 9 fires within 5 miles of Irwin between 2007 and 2014, burning about 489 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 | 4 |
| Missing data/not specified/undetermined | 3 |
| Equipment and vehicle use | 2 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 22 September 2007 | Missing data/not specified/undetermined | 1.0 acres | Iowa Department of Natural Resources | not named |
| 25 April 2013 | Missing data/not specified/undetermined | 5.0 acres | Iowa Department of Natural Resources | not named |
| 25 April 2013 | Equipment and vehicle use | 5.0 acres | Iowa Department of Natural Resources | not named |
| 20 April 2013 | Debris and open burning | 6.0 acres | Iowa Department of Natural Resources | not named |
| 31 March 2014 | Debris and open burning | under an acre | Iowa Department of Natural Resources | not named |
| 28 March 2014 | Debris and open burning | 2.0 acres | Iowa Department of Natural Resources | not named |
| 26 March 2014 | Debris and open burning | 340 acres | Iowa Department of Natural Resources | not named |
| 26 March 2014 | Equipment and vehicle use | 130 acres | Iowa Department of Natural Resources | not named |
Settlements close enough to share some of these fires:
Storms near this place
21 since 1996Regional context, not property-specific evidence. The National Weather Service names Irwin in 21 storm reports between 1996 and 2024: 11 hail, 8 thunderstorm wind, 1 heavy rain, 1 tornado. 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.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| April 2024 | Tornado (EF1) | Irwin | - | This tornado touched down in the V and W Petersen Wildlife Management Area, less than half a mile south of the Shelby-Crawford County border between Road M36 and Quince Road. This tornado quickly moved into Crawford County, but not before snapping several tree trunks on 2500th Street. Here, EF-1 damage was noted, with peak winds estimated at 107 miles per hour. The tornado continued into Crawford County where it completely destroyed a barn 1 mile northwest of Manilla, Iowa, resulting in a final EF-2 rating for the tornado. In Shelby County, the tornado reached a peak width of 100 yards, with an average width estimated at 50 yards. |
| September 2019 | Thunderstorm Wind | Irwin | - | Several large branches 10-15 inches in diameter were blown down in thunderstorm winds. |
| July 2016 | Thunderstorm Wind | Irwin | - | The emergency manager reported that a roof was lifted off a barn. |
| August 2014 | Thunderstorm Wind | Irwin | - | The gust was estimated by the a trained spotter. |
| June 2011 | Thunderstorm Wind | Irwin | - | The public estimated that thunderstorm wind gusts reached around 60 mph in the Irwin area. |
| June 2009 | Thunderstorm Wind | Irwin | - | A spotter in the Irwin area stated that healthy tree branches, some up to a few inches in diameter, were downed by thunderstorm winds that were estimated at close to 60 mph. |
| April 2008 | Hail | Irwin | - | Most of the hail was penny or nickel size, but a few of the stones were around quarter size. |
| May 2007 | Heavy Rain | Irwin | - | The cooperative observer near Irwin reported a 24 hour rainfall amount of 4.55 inches. |
| July 2006 | Thunderstorm Wind | Irwin | - | Thunderstorm winds estimated at 60 mph downed 4 inch in diameter tree limbs in town. |
| November 2015 | Thunderstorm Wind | Irwin | - | no account filed |
| May 2014 | Hail | Irwin | - | no account filed |
| June 2008 | Hail | Irwin | - | no account filed |
| May 2005 | Hail | Irwin | - | no account filed |
| May 2005 | Hail | Irwin | - | no account filed |
| May 2004 | Hail | Irwin | - | no account filed |
| April 2002 | Hail | Irwin | - | no account filed |
| April 1999 | Hail | Irwin | - | no account filed |
| July 1999 | Hail | Irwin | - | no account filed |
| May 1998 | Hail | Irwin | - | no account filed |
| May 1998 | Thunderstorm Wind | Irwin | - | no account filed |
| June 1996 | Hail | Irwin | - | no account filed |
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 | Place | Distance | Sheets |
|---|---|---|---|
| Kirkman | 5.4 miles | 8 | |
| Red Line | 5.9 miles | 8 | |
| Botna | 5.9 miles | 8 | |
| Fiscus | 7.0 miles | 8 | |
| Defiance | 7.6 miles | 8 | |
| Poplar | 9.3 miles | 8 | |
| Jacksonville | 10.5 miles | 8 | |
| Westphalia | 11.2 miles | 8 |
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 Irwin | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1931668 | The 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 457863. 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.
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.




