Dedham, Iowa
9 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1993. It stands in Newton Township. It lies in ZIP code area 51440. It stands on Dedham Creek. The Survey maps it on the Dedham quadrangle. 224 people lived here at the 2020 count. It stands 1,332 feet above sea level.
Population over time
2 figuresDedham fell from 266 to 224 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 | 266 | |
| 2020 | 224 | -42 (-16%) |
Topographic sheets covering this place
6 surveys from 9 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
- 1971 USGS Dedham quadrangle1:24000
- 1984 USGS Guthrie Center quadrangle1:100000
- 1993 USGS Guthrie Center quadrangle1:100000
Fires near this place
4 since 2007Regional context, not property-specific evidence. The federal wildfire occurrence database lists 4 fires within 5 miles of Dedham between 2007 and 2009, burning about 23 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 |
|---|---|
| Missing data/not specified/undetermined | 4 |
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 |
|---|---|---|---|---|
| 16 April 2009 | Missing data/not specified/undetermined | 1.0 acres | Iowa Department of Natural Resources | not named |
| 15 April 2009 | Missing data/not specified/undetermined | 20 acres | Iowa Department of Natural Resources | not named |
| 29 March 2009 | Missing data/not specified/undetermined | 1.0 acres | Iowa Department of Natural Resources | not named |
| 29 October 2007 | Missing data/not specified/undetermined | 1.0 acres | Iowa Department of Natural Resources | not named |
Settlements close enough to share some of these fires:
Mines and quarries near this place
2 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Dedham: 2 past producers. None of them still produces. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
Storms near this place
20 since 1999Regional context, not property-specific evidence. The National Weather Service names Dedham in 20 storm reports between 1999 and 2024: 11 hail, 5 thunderstorm wind, 2 tornado, 1 lightning. 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 |
|---|---|---|---|---|
| July 2008 | Thunderstorm Wind | Dedham | $15,000 | Trained spotter reported widespread power line damage in the Carroll area. |
| April 2002 | Hail | Dedham | $15,000 | no account filed |
| July 2008 | Thunderstorm Wind | Dedham | $10,000 | no account filed |
| August 2016 | Thunderstorm Wind | Dedham | $5,000 | KCCI relayed a large tree trunk snapped via a viewer. |
| June 2009 | Thunderstorm Wind | Dedham | $5,000 | Tree limbs blown down and corn damaged. |
| June 2013 | Hail | Dedham | $5,000 | no account filed |
| June 2013 | Hail | Dedham | $5,000 | no account filed |
| May 2004 | Hail | Dedham | $5,000 | no account filed |
| April 2002 | Hail | Dedham | $5,000 | no account filed |
| June 2001 | Hail | Dedham | $5,000 | no account filed |
| June 1999 | Lightning | Dedham | $5,000 | no account filed |
| September 2006 | Hail | Dedham | $3,000 | no account filed |
| June 2013 | Hail | Dedham | $2,000 | no account filed |
| June 2013 | Hail | Dedham | $2,000 | no account filed |
| September 2006 | Thunderstorm Wind | Dedham | $2,000 | no account filed |
| April 2002 | Tornado (F0) | Dedham | $1,000 | Brief touchdown with only minor damage. |
| April 2024 | Hail | Dedham | - | A large quantity of dime to nickel sized hail. |
| July 2020 | Funnel Cloud | Dedham | - | Law enforcement relayed multiple reports of funnel clouds occurring with showers in the area. |
| August 2007 | Tornado (EF0) | Dedham | - | Tornado touched down briefly between Willey and Dedham. |
| June 2013 | Hail | Dedham | - | 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 |
|---|---|---|---|
| Carrollton | 5.0 miles | 9 | |
| Willey | 5.0 miles | 9 | |
| Templeton | 6.4 miles | 9 | |
| Coon Rapids | 8.0 miles | 9 | |
| Roselle | 8.2 miles | 8 | |
| Halbur | 10.5 miles | 8 | |
| Carroll | 11.3 miles | 8 | |
| Glidden | 11.5 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 Dedham | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q339904 | 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 455840. 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.





