Delmont, South Dakota
9 topographic sheets cover this place, the earliest surveyed in 1955 and the latest in 1990. It stands in Belmont Township. It lies in ZIP code area 57330. The Survey maps it on the Delmont quadrangle. 153 people lived here at the 2020 count. It stands 1,493 feet above sea level.
On record in Delmont
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
Delmont Public Schoollisted 1994
Delmont Pumphouselisted 1998
Delmont State Banklisted 2008
Thomas Lenehan Houselisted 1988
Stevens Opera Blocklisted 1988
Population over time
2 figuresDelmont fell from 234 to 153 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 | 234 | |
| 2020 | 153 | -81 (-35%) |
Topographic sheets covering this place
5 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.
- 1955 USGS Mitchell quadrangle1:250000, 2 printings
- 1959 USGS Mitchell quadrangle1:250000, 2 printings
- 1979 USGS Delmont quadrangle1:24000
- 1986 USGS Lake Andes quadrangle1:100000, 3 printings
- 1990 USGS Mitchell quadrangle1:250000
Fires near this place
8 since 2008Regional context, not property-specific evidence. The federal wildfire occurrence database lists 8 fires within 5 miles of Delmont between 2008 and 2020, burning about 39 acres in total. None started naturally. 1 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 | 2 |
| Arson/incendiarism | 1 |
| Smoking | 1 |
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 |
|---|---|---|---|---|
| 5 April 2011 | Debris and open burning | under an acre | South Dakota Wildland Fire Suppression | GREEN WOOD COLONY IRON PILE |
| 19 April 2008 | Debris and open burning | 5.0 acres | South Dakota Wildland Fire Suppression | not named |
| 9 March 2015 | Smoking | 3.0 acres | South Dakota Wildland Fire Suppression | NEW 18 WEST |
| 7 March 2015 | Missing data/not specified/undetermined | under an acre | South Dakota Wildland Fire Suppression | 1/2 MILE WEST OF DELMONT |
| 21 March 2012 | Debris and open burning | 20 acres | South Dakota Wildland Fire Suppression | MARUIN LAU 2012-01 |
| 5 December 2020 | Debris and open burning | 10 acres | South Dakota Wildland Fire Suppression | LEDEBOER202001 |
| 18 December 2010 | Arson/incendiarism | under an acre | Yankton Agency | SANTA CLAUS |
| 14 November 2017 | Missing data/not specified/undetermined | under an acre | South Dakota Wildland Fire Suppression | GOEHRING STALKS |
Settlements close enough to share some of these fires:
Mines and quarries near this place
3 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Delmont: 2 past producers, 1 producer. 1 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.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Delmont Hieb Sand Pit | Sand and Gravel, Construction | Past Producer | ||
| Grosz Pit | Sand and Gravel, Construction | Producer | ||
| James Goetz Pit | Sand and Gravel, Construction | Past Producer |
Storms near this place
39 since 1999Regional context, not property-specific evidence. The National Weather Service names Delmont in 39 storm reports between 1999 and 2025: 28 hail, 8 thunderstorm wind, 2 tornado, 1 wildfire. The reports record 1 death and 10 injuries. 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 |
|---|---|---|---|---|
| March 2000 | Wildfire | Delmont | 1 killed, 1 hurt, $5,000 | no account filed |
| May 2015 | Tornado (EF2) | Delmont | 9 hurt, $1,500,000 | A tornado, crossing into Douglas County from Charles Mix County, destroyed or damaged 84 structures in and near Delmont, and injured 9 people in Delmont. About 50 of the homes and other structures were destroyed or severely damaged. The damage included numerous small farm buildings totally destroyed, most at four farms south of Delmont, several houses severely damaged, a large and 100 year old church severely damaged, and a newly constructed fire hall destroyed. Power lines and poles were down and the town was without power and water for two days. 100 residents were displaced. |
| July 2014 | Thunderstorm Wind | Delmont | $5,000 | Thunderstorm winds destroyed a machine shed, and caused tree damage. |
| September 2012 | Thunderstorm Wind | Delmont | $1,000 | Thunderstorm winds damaged a metal barn. |
| July 2023 | Hail | Delmont | - | Golf ball to tennis ball sized hail fell straight down, which cracked the windshield on a parked pickup truck. |
| June 2022 | Thunderstorm Wind | Delmont | - | The temporary roof was blown off a school. |
| June 2020 | Hail | Delmont | - | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| July 2019 | Thunderstorm Wind | Delmont | - | Significant tree damage and some damage to buildings in town. Power was knocked out to most of the town through the morning hours. |
| April 2018 | Hail | Delmont | - | First of two quarter size hail events for the day. |
| April 2018 | Hail | Delmont | - | The ground was covered with three to four inches of hail. Hail was accompanied by 25 to 30 mph winds, which pounded some paint off an outbuilding. |
| July 2014 | Hail | Delmont | - | Large hail, driven by strong winds, broke windows and dented vehicles. |
| September 2012 | Hail | Delmont | - | Large hail was accompanied by damaging wind gusts. |
| September 2006 | Hail | Delmont | - | Large hail damaged siding, windows, and cars. The damage was significant but confined to a small area according to local law enforcement. The amount of damage was not known. |
| September 2006 | Hail | Delmont | - | Large hail damaged siding, windows, and cars. The damage was significant but confined to a small area according to local law enforcement. The amount of damage was not known. |
| September 2006 | Tornado (F0) | Delmont | - | A brief tornado caused no reported damage. |
| August 2004 | Thunderstorm Wind | Delmont | - | Thunderstorm winds damaged power lines, causing a power outage. |
| August 2025 | Hail | Delmont | - | no account filed |
| July 2023 | Hail | Delmont | - | no account filed |
| April 2022 | Hail | Delmont | - | no account filed |
| April 2018 | Hail | Delmont | - | no account filed |
| August 2017 | Hail | Delmont | - | no account filed |
| June 2017 | Hail | Delmont | - | no account filed |
| May 2011 | Hail | Delmont | - | no account filed |
| June 2010 | Hail | Delmont | - | no account filed |
| June 2010 | Hail | Delmont | - | no account filed |
| June 2009 | Hail | Delmont | - | no account filed |
| June 2008 | Thunderstorm Wind | Delmont | - | no account filed |
| June 2008 | Hail | Delmont | - | no account filed |
| May 2008 | Hail | Delmont | - | no account filed |
| August 2007 | Hail | Delmont | - | no account filed |
| July 2004 | Hail | Delmont | - | no account filed |
| July 2004 | Hail | Delmont | - | no account filed |
| July 2004 | Hail | Delmont | - | no account filed |
| August 2002 | Hail | Delmont | - | no account filed |
| August 2002 | Hail | Delmont | - | no account filed |
| August 2002 | Thunderstorm Wind | Delmont | - | no account filed |
| August 2002 | Hail | Delmont | - | no account filed |
| May 2000 | Thunderstorm Wind | Delmont | - | no account filed |
| May 1999 | Hail | Delmont | - | 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 |
|---|---|---|---|
| Greenwood Colony | 3.8 miles | 9 | |
| Armour | 10.4 miles | 9 | |
| Douglas City (historical) | 11.2 miles | 9 | |
| Grandview (historical) | 13.7 miles | 9 | |
| Hillside | 14.1 miles | 9 | |
| Corsica | 16.9 miles | 9 | |
| Harrison | 22.3 miles | 9 | |
| New Holland | 26.1 miles | 9 |
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 Delmont | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2575269 | 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 1254665. 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.




