Idaho City, Idaho
19 topographic sheets cover this place, the earliest surveyed in 1894 and the latest in 1998. It stands in the Idaho City census division. It lies in ZIP code area 83631. It lies near Bear Run Gulch. The Survey maps it on the Idaho City quadrangle. 466 people lived here at the 2020 count. It stands 3,907 feet above sea level.
On record in Idaho City
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 1 record
- Idaho Citylisted 1975
Population over time
2 figuresIdaho City fell from 485 to 466 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 | 485 | |
| 2020 | 466 | -19 (-4%) |
Topographic sheets covering this place
8 surveys from 19 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.
- 1894 USGS Idaho Basin quadrangle1:125000, 5 printings
- 1894 USGS Idaho City quadrangle1:125000, 2 printings
- 1955 USGS Hailey quadrangle1:250000, 4 printings
- 1957 USGS Idaho City quadrangle1:24000, 3 printings
- 1959 USGS Hailey quadrangle1:250000, 2 printings
- 1962 USGS Hailey quadrangle1:250000
- 1982 USGS Idaho City quadrangle1:100000
- 1998 USGS Idaho City quadrangle1:24000
Fires near this place
180 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 180 fires within 5 miles of Idaho City between 1992 and 2020, burning about 1,526 acres in total. 86 started naturally. 9 were 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 |
|---|---|
| Natural | 86 |
| Recreation and ceremony | 35 |
| Missing data/not specified/undetermined | 23 |
| Debris and open burning | 9 |
| Arson/incendiarism | 9 |
| Smoking | 7 |
| Equipment and vehicle use | 7 |
| Power generation/transmission/distribution | 1 |
| Misuse of fire by a minor | 1 |
| Fireworks | 1 |
| Other causes | 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 2007 | Smoking | under an acre | Boise National Forest | LYKOW |
| 8 September 2006 | Natural | under an acre | Boise National Forest | BANNOCK |
| 7 September 2019 | Natural | under an acre | Boise National Forest | HOODOO |
| 7 September 2009 | Recreation and ceremony | under an acre | Boise National Forest | SUNFLOWER |
| 6 September 2019 | Debris and open burning | under an acre | Idaho Department of Lands | SWS 018 AIRPORT |
| 6 September 2019 | Natural | under an acre | Idaho Department of Lands | SWS 020 WILLOW |
| 4 September 1998 | Arson/incendiarism | 16 acres | Boise National Forest | GREENLAND GULCH |
| 30 September 2006 | Recreation and ceremony | 1.5 acres | Boise National Forest | RUNNING BEAR |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 59 shownRegional context, not property-specific evidence. The federal mineral resources record lists 59 workings within 5 miles of Idaho City: 24 past producers, 19 occurrences, 7 unknowns, 5 producers. 5 still produce. What was taken out: Gold, Silver, Antimony, Lead. 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 |
|---|---|---|---|---|
| Bar | Gold, Garnet, Iron, Thorium | Occurrence | Placer | |
| Bar | Gold, Thorium, Iron, Garnet | Unknown | ||
| Boise Basin Region | Gold, Silver, Copper, Lead, Zinc | Producer | Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite | |
| Boomer Prospect | Gold, Molybdenum | Occurrence | Molybdenite | |
| Boomer Prospect | Gold, Molybdenum | Prospect | ||
| Cloverleaf Mine | Gold, Zinc, Lead | Past Producer | Galena, Sphalerite | |
| Crackerjack and Old Boston | Gold, REE, Zirconium, Silver | Past Producer | ||
| Elk and Mores Creeks | Gold, Zirconium, Uranium, Thorium, Silver | Past Producer | ||
| Gambrinus Mine | Gold, Antimony, Silver | Past Producer | ||
| Garrecht Prospects | Lead, Gold | Occurrence | Galena |
Storms near this place
11 since 1996Regional context, not property-specific evidence. The National Weather Service names Idaho City in 11 storm reports between 1996 and 2014: 5 flash flood, 3 thunderstorm wind, 1 heavy rain, 1 flood. The reports record 1 death. 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 |
|---|---|---|---|---|
| August 2010 | Thunderstorm Wind | Idaho City | 1 killed | Boise County Sherrif's dispatch reported a large number of trees down on and around Grimes Creek Road including one fatality at Grimes Creek. |
| August 2014 | Flood | Idaho City | - | Middle Fork Road and many camping areas were closed due to flooding and mud slides. |
| August 2014 | Debris Flow | Idaho City | - | Debris was reported flowing across Highway 21 near Hayfork Campground. |
| August 2004 | Flash Flood | Idaho City | - | Heavy rain caused two mud slides on Grimes Creek RD. One at mile post 2.2 and one futher up. |
| August 2003 | Flash Flood | Idaho City | - | Heavy rain caused water and mud to flow across State Highway 21 near mp 19...Flash Flooding also occurred 19 miles east of Banks with water and debris across roadway. |
| July 1998 | Flash Flood | Idaho City | - | A National Weather Service storm survey team found evidence of a flash flood across the Middle Fork of the Boise River Road which happened on the evening of the 31st. A small creek flowing under the road through a culvert apparently swelled to over 30 feet wide and 10 feet deep depositing debris over the road. |
| August 1997 | Flash Flood | Idaho City | - | A series of mud slides and flash floods occurred in a remote region of the Boise Mountains on the evening of August 11. Scattered moderate showers and thunderstorms had been occurring over this region all day long. 8 mud slides cut Forest Service Road 317 with up to 4 feet of mud and debris. Normally dry stream beds were reported to contain up to 6 feet of water during the flood. No damage or injuries were reported. |
| July 2002 | Thunderstorm Wind | Idaho City | - | no account filed |
| July 1998 | Flash Flood | Idaho City | - | no account filed |
| June 1996 | Thunderstorm Wind | Idaho City | - | no account filed |
| July 1996 | Heavy Rain | Idaho City | - | 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 |
|---|---|---|---|
| New Centerville | 5.4 miles | 20 | |
| Washington Mill | 6.0 miles | 19 | |
| Centerville | 6.6 miles | 20 | |
| Tenmile Summer Home Area | 8.0 miles | 18 | |
| Star Ranch Summer Home Area | 9.2 miles | 20 | |
| Pioneerville | 9.7 miles | 19 | |
| Placerville | 9.9 miles | 20 | |
| Granite | 10.5 miles | 20 |
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 Idaho City | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q990262 | 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 383600. 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.







