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Sierra Madre, California

47 topographic sheets cover this place, the earliest surveyed in 1894 and the latest in 1995. It stands in the Upper San Gabriel Valley census division. It lies in ZIP code area 91024. It lies near Little Santa Anita Canyon. The Survey maps it on the Mount Wilson quadrangle. 11,268 people lived here at the 2020 count. It stands 827 feet above sea level.

Sierra Madre within Los Angeles County

Then and now

1894 to 1995

The same ground, surveyed 101 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Sierra Madre, surveyed 1995
Topographic sheet of Sierra Madre, surveyed 1894

Compare 1894 against another survey:

On record in Sierra Madre

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 2 records

Population over time

3 figures

Sierra Madre grew from 1,303 to 11,268 between 1910 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
19101,303
201010,917
202011,268+351 (+3%)

Topographic sheets covering this place

18 surveys from 47 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

270 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 270 fires within 5 miles of Sierra Madre between 1992 and 2020, burning about 7,399 acres in total. 4 started naturally. 36 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/undetermined120
Equipment and vehicle use39
Arson/incendiarism36
Smoking26
Misuse of fire by a minor15
Recreation and ceremony11
Power generation/transmission/distribution9
Debris and open burning5
Fireworks4
Natural4
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
5 September 2006Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire Protectionnot named
4 September 2002Power generation/transmission/distributionunder an acreAngeles National ForestELLIOT
30 September 1992Arson/incendiarismunder an acreAngeles National ForestWILDERNESS
3 September 2011Missing data/not specified/undeterminedunder an acreLos Angeles County Fire Departmentnot named
3 September 1996Arson/incendiarismunder an acreAngeles National ForestLUCKY
28 September 2010Equipment and vehicle useunder an acreCalifornia Department of Forestry & Fire Protectionnot named
26 September 2019Missing data/not specified/undeterminedunder an acreLos Angeles County Fire Departmentnot named
25 September 2005Smokingunder an acreCalifornia Department of Forestry & Fire Protectionnot named

Settlements close enough to share some of these fires:

Every fire recorded in Los Angeles County

Mines and quarries near this place

10 of 24 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 24 workings within 5 miles of Sierra Madre: 14 past producers, 4 prospects, 3 producers, 3 occurrences. 3 still produce. What was taken out: Sand and Gravel, Construction, Gold, Silver, Stone, Dimension. 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
Century Sand and GravelGold, SilverPast Producer
Sunburst PitStone, DimensionPast Producer
Winter CreekMolybdenum, Gold, Silver, CopperOccurrenceBornite, Chalcopyrite, Molybdenite
Winter CreekCopper, Gold, Molybdenum, SilverPast Producer
Winter Creek GroupMolybdenum, Gold, Silver, CopperOccurrenceVein
Winter GroupCopper, Silver, Gold, MolybdenumOccurrenceBornite, Chalcopyrite, Malachite, Pyrite
Arrow Rock Co Duarte PlantSand and Gravel, ConstructionPast ProducerSedimentary
Arrow Sand & Gravel, IncSand and Gravel, ConstructionProducer
Blue Diamond - Peck Rd PitSand and Gravel, ConstructionProspectSedimentary
Blue Diamond - PiersonSand and Gravel, ConstructionProspectSedimentary

Every working recorded in Los Angeles 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
Santa Anita1.1 miles47
Arcadia1.8 miles47
Chapman1.9 miles47
Kinneloa Mesa1.9 miles47
Lamanda Park2.4 miles47
East Pasadena2.4 miles47
West Arcadia2.5 miles47
Monrovia3.0 miles44

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 Sierra MadreAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q174026The 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 1661439. 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.