Diablo Grande, California
19 topographic sheets cover this place, the earliest surveyed in 1938 and the latest in 1978. It stands in the Patterson census division. It lies in ZIP code area 95363. The Survey maps it on the Copper Mountain quadrangle. 1,669 people lived here at the 2020 count. It stands 1,535 feet above sea level.
Then and now
1938 to 1978The same ground, surveyed 40 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
2 figuresDiablo Grande grew from 826 to 1,669 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 | 826 | |
| 2020 | 1,669 | +843 (+102%) |
Topographic sheets covering this place
10 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.
- 1938 USGS Mt. Boardman quadrangle1:62500, 3 printings
- 1942 USGS Mt. Boardman quadrangle1:62500
- 1943 USGS Mt. Boardman quadrangle1:62500
- 1947 USGS San Jose quadrangle1:250000
- 1956 USGS Copper Mtn quadrangle1:24000, 5 printings
- 1956 USGS Copper Mtn. quadrangle1:24000
- 1956 USGS San Jose quadrangle1:250000
- 1962 USGS San Jose quadrangle1:250000, 4 printings
- 1966 USGS San Jose quadrangle1:250000
- 1978 USGS San Jose quadrangle1:100000
Fires near this place
44 since 1993Regional context, not property-specific evidence. The federal wildfire occurrence database lists 44 fires within 5 miles of Diablo Grande between 1993 and 2019, burning about 40,489 acres in total. None started naturally. 7 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 |
|---|---|
| Equipment and vehicle use | 16 |
| Missing data/not specified/undetermined | 11 |
| Arson/incendiarism | 7 |
| Smoking | 3 |
| Misuse of fire by a minor | 3 |
| Debris and open burning | 2 |
| Recreation and ceremony | 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 |
|---|---|---|---|---|
| 30 September 2017 | Missing data/not specified/undetermined | 18 acres | California Department of Forestry & Fire Protection | FINK |
| 25 September 2009 | Equipment and vehicle use | 1.5 acres | Santa Clara Unit | DIABLO |
| 16 September 1994 | Equipment and vehicle use | under an acre | Santa Clara Unit | OAK FLAT |
| 14 September 1996 | Equipment and vehicle use | 60 acres | Santa Clara Unit | CHAIN |
| 8 August 1998 | Missing data/not specified/undetermined | 110 acres | Santa Clara Unit | RICHOCHET |
| 7 August 2014 | Equipment and vehicle use | under an acre | Santa Clara Unit | DIABLO |
| 3 August 2016 | Missing data/not specified/undetermined | 100 acres | California Department of Forestry & Fire Protection | DIABLO |
| 3 August 2016 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | MILE |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 12 shownRegional context, not property-specific evidence. The federal mineral resources record lists 12 workings within 5 miles of Diablo Grande: 9 occurrences, 1 unknown, 1 prospect, 1 producer. 1 still produces. What was taken out: Manganese, Silver, Magnesite, Silica. 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 |
|---|---|---|---|---|
| Copper Mtn and Wild West | Copper | Occurrence | ||
| Hammond | Silica | Occurrence | ||
| Promberger Property | Magnesite | Unknown | ||
| None Such | Silver | Occurrence | ||
| Reported Occurrence | Silver | Occurrence | ||
| Crocker Prospect | Manganese | Occurrence | ||
| Crocker Prospect | Manganese | Occurrence | 1918 | |
| Hammond | Manganese | Occurrence | ||
| Hammond Prospect | Manganese | Occurrence | ||
| Magnesia Camp | Manganese | Occurrence |
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 |
|---|---|---|---|
| Patterson | 8.4 miles | 19 | |
| Jet | 8.7 miles | 21 | |
| Vanormer (historical) | 9.0 miles | 19 | |
| Crows Landing | 10.0 miles | 21 | |
| Westley | 10.7 miles | 20 | |
| Stomar | 11.7 miles | 19 | |
| Grayson | 12.0 miles | 20 | |
| Timba | 12.8 miles | 19 |
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 Diablo Grande | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q5270165 | 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 2680803. 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.









