Bar Nunn, Wyoming
11 topographic sheets cover this place, the earliest surveyed in 1951 and the latest in 1988. It stands in the Casper North census division. It lies in ZIP code area 82601. The Survey maps it on The Reefs quadrangle. 2,981 people lived here at the 2020 count. It stands 5,285 feet above sea level.
Population over time
2 figuresBar Nunn grew from 2,213 to 2,981 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 | 2,213 | |
| 2020 | 2,981 | +768 (+35%) |
Topographic sheets covering this place
7 surveys from 11 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.
- 1951 USGS The Reefs quadrangle1:24000
- 1955 USGS Casper quadrangle1:250000
- 1958 USGS Casper quadrangle1:250000, 2 printings
- 1961 USGS The Reefs quadrangle1:24000, 4 printings
- 1962 USGS Casper quadrangle1:250000
- 1979 USGS Casper quadrangle1:100000
- 1988 USGS Casper quadrangle1:250000
Fires near this place
114 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 114 fires within 5 miles of Bar Nunn between 1992 and 2020, burning about 13,589 acres in total. 16 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 | 62 |
| Natural | 16 |
| Power generation/transmission/distribution | 7 |
| Smoking | 6 |
| Equipment and vehicle use | 6 |
| Fireworks | 5 |
| Railroad operations and maintenance | 4 |
| Debris and open burning | 4 |
| Misuse of fire by a minor | 3 |
| Recreation and ceremony | 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 |
|---|---|---|---|---|
| 9 September 2017 | Recreation and ceremony | 1.0 acres | Natrona County | POWERLINE |
| 7 September 2019 | Natural | under an acre | Casper Field Office | COMPOST |
| 4 September 1992 | Missing data/not specified/undetermined | under an acre | Wyoming State Forestry | not named |
| 30 September 2018 | Equipment and vehicle use | 28 acres | Natrona County | POWER LINE |
| 2 September 2020 | Missing data/not specified/undetermined | under an acre | Natrona County | NA |
| 2 September 2019 | Missing data/not specified/undetermined | 25 acres | Natrona County | IMIGRANT TRAIL FIRE |
| 2 September 2018 | Missing data/not specified/undetermined | under an acre | Natrona County | STUCKENHOFF |
| 17 September 2019 | Railroad operations and maintenance | under an acre | Natrona County | 71 CONSTRUCTION |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 11 shownRegional context, not property-specific evidence. The federal mineral resources record lists 11 workings within 5 miles of Bar Nunn: 5 producers, 4 occurrences, 1 past producer, 1 prospect. 5 still produce. What was taken out: Uranium, Sand and Gravel, Construction, Bentonite, Fire Clay (Refractory). 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 |
|---|---|---|---|---|
| Unknown | Fire Clay (Refractory) | Occurrence | ||
| Benton Clay Co Mill | Bentonite | Producer | ||
| Casper Concrete Pit & Plant | Sand and Gravel, Construction | Producer | ||
| Kaycee Clay Mine | Bentonite | Producer | ||
| Sun Ray Pit | Sand and Gravel, Construction | Past Producer | ||
| Dry Lake | Uranium | Prospect | ||
| Dry Lake Claim | Uranium | Occurrence | Carnotite | |
| Lyberger Claims | Uranium | Occurrence | Carnotite | |
| Meyers | Uranium | Occurrence | ||
| Nine Mile Lake Project | Uranium | Producer |
Storms near this place
10 since 2009Regional context, not property-specific evidence. The National Weather Service names Bar Nunn in 10 storm reports between 2009 and 2025: 6 hail, 2 tornado, 1 flash flood, 1 thunderstorm wind. 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 2018 | Hail | Bar Nunn | $1,000 | Trained spotters reported hail ranging from quarter to ping pong ball size from Bar Nunn into the east side of Casper. Some of larger hail damaged a carport in Casper. |
| July 2025 | Hail | Bar Nunn | - | A trained spotter reported nickel size hail north of Bar Nunn. |
| June 2023 | Hail | Bar Nunn | - | A trained spotter reported golf ball size hail to the west of Bar Nunn. |
| July 2018 | Tornado (EF0) | Bar Nunn | - | Two trained spotters photographed a landspout tornado to the north of Casper. The tornado remained over open county and caused no damage. |
| June 2017 | Tornado (EF0) | Bar Nunn | - | The Natrona County emergency manager reported a brief tornado touchdown to the west of Bar Nunn. The tornado remained over open country and did little damage. |
| September 2016 | Hail | Bar Nunn | - | A strong thunderstorm produced penny sized hail in Bar Nunn north of Casper. |
| May 2015 | Flash Flood | Bar Nunn | - | Trained spotters reported flood waters up to buildings on the south side of Bar Nunn. |
| June 2011 | Hail | Bar Nunn | - | An off-duty NWS employee and the public each reported two inch diameter hail on Interstate 25 at milepost 195 north of Bar Nunn. |
| June 2009 | Hail | Bar Nunn | - | A trained spotter measured hail up to 1.25 inches in diameter. |
| June 2025 | Thunderstorm Wind | Bar Nunn | - | 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 |
|---|---|---|---|
| Richardson Acres | 1.0 miles | 11 | |
| Hartrandt | 1.8 miles | 11 | |
| Casper | 3.6 miles | 11 | |
| Midwest Heights | 4.2 miles | 11 | |
| Homa Hills | 4.7 miles | 11 | |
| Mountain View | 4.8 miles | 11 | |
| Mills | 5.2 miles | 11 | |
| Evansville | 5.4 miles | 11 |
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 Bar Nunn | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1030110 | 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 1609352. 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.






