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San Antonio Heights, California

49 topographic sheets cover this place, the earliest surveyed in 1897 and the latest in 1995. It stands in the Ontario census division. It lies in ZIP code area 91784. It lies near Frankish Canyon. The Survey maps it on the Mount Baldy quadrangle. 3,441 people lived here at the 2020 count. It stands 2,103 feet above sea level.

San Antonio Heights within San Bernardino County

Then and now

1897 to 1995

The same ground, surveyed 98 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of San Antonio Heights, surveyed 1995
Topographic sheet of San Antonio Heights, surveyed 1897

Compare 1897 against another survey:

On record in San Antonio Heights

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

Population over time

2 figures

San Antonio Heights grew from 3,371 to 3,441 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.

YearPeople Change
20103,371
20203,441+70 (+2%)

Topographic sheets covering this place

21 surveys from 49 printed sheets

Matched 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.

Fires near this place

305 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 305 fires within 5 miles of San Antonio Heights between 1992 and 2020, burning about 12,579 acres in total. 8 started naturally. 79 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
Missing data/not specified/undetermined83
Arson/incendiarism79
Equipment and vehicle use61
Recreation and ceremony35
Misuse of fire by a minor11
Smoking11
Natural8
Fireworks8
Debris and open burning6
Power generation/transmission/distribution2
Other causes1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

DateCause SizeReported by Name on the report
9 September 2002Arson/incendiarismunder an acreAngeles National ForestBARRETT
9 September 2002Arson/incendiarismunder an acreAngeles National ForestYUCCA
9 September 1994Misuse of fire by a minor110 acresSan Bernardino National ForestAMETHYST
8 September 2003Arson/incendiarismunder an acreAngeles National ForestTOP
5 September 2004Smokingunder an acreAngeles National ForestPALMER
30 September 2010Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire Protectionnot named
3 September 1998Equipment and vehicle useunder an acreAngeles National ForestPADUA
29 September 2010Naturalunder an acreAngeles National ForestSUNSET

Settlements close enough to share some of these fires:

Every fire recorded in San Bernardino County

Mines and quarries near this place

10 of 16 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 16 workings within 5 miles of San Antonio Heights: 10 past producers, 4 occurrences, 1 unknown, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction, Tungsten, Graphite, Clay. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
Big Horn MineGemstonePast Producer
San Antonio Canyon CorundumCorundumOccurrence
San Gabriel Canyon AreaGoldProducer
Unnamed LocationClayUnknown
Upland South PitSand and Gravel, Construction, Gold, SilverPast Producer
Barrett CanyonGraphitePast Producer
Eva CanyonGraphiteOccurrence
Marble CanyonTungstenOccurrence
Marble CanyonTungstenOccurrence
Campus PitSand and Gravel, ConstructionPast Producer

Every working recorded in San Bernardino County

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 PlaceDistance Sheets
Los Olivos3.3 miles46
College Heights3.8 miles47
Alta Loma3.9 miles41
Upland4.0 miles43
North Ontario4.2 miles43
Rancho Cucamonga4.8 miles41
Las Uvas (historical)5.0 miles48
Grapeland5.4 miles48

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 San Antonio HeightsAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q2183469The 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 1661373. 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.