BlockBefore

Newcastle, California

28 topographic sheets cover this place, the earliest surveyed in 1891 and the latest in 1994. It stands in the Auburn census division. It lies in ZIP code area 95658. The Survey maps it on the Rocklin quadrangle. 1,321 people lived here at the 2020 count. It stands 945 feet above sea level.

Newcastle within Placer County

Then and now

1891 to 1994

The same ground, surveyed 103 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Newcastle, surveyed 1994
Topographic sheet of Newcastle, surveyed 1891

On record in Newcastle

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

Newcastle grew from 1,224 to 1,321 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
20101,224
20201,321+97 (+8%)

Topographic sheets covering this place

12 surveys from 28 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

1,136 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1,136 fires within 5 miles of Newcastle between 1992 and 2020, burning about 2,381 acres in total. 5 started naturally. 47 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/undetermined455
Equipment and vehicle use373
Debris and open burning156
Arson/incendiarism47
Misuse of fire by a minor36
Power generation/transmission/distribution23
Smoking22
Railroad operations and maintenance15
Natural5
Recreation and ceremony3
Firearms and explosives use1

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 2017Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire ProtectionGERRY
9 September 2016Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire ProtectionEDGEWOOD
9 September 2013Missing data/not specified/undetermined1.0 acresNevada-Yuba-Placer UnitTUDSBURY
9 September 2010Missing data/not specified/undeterminedunder an acreNevada-Yuba-Placer UnitSHAWNEE
9 September 1996Equipment and vehicle useunder an acreNevada-Yuba-Placer UnitLINE
8 September 2015Missing data/not specified/undeterminedunder an acreNevada-Yuba-Placer UnitNEWCASTLE
8 September 2007Equipment and vehicle useunder an acreNevada-Yuba-Placer UnitVERNON
8 September 2005Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire Protectionnot named

Settlements close enough to share some of these fires:

Every fire recorded in Placer County

Mines and quarries near this place

10 of 216 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 216 workings within 5 miles of Newcastle: 90 past producers, 69 unknowns, 45 occurrences, 11 producers. 11 still produce. What was taken out: Gold, Silver, Lead, Copper. 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
AlabamaGold, Silver, Lead, Copper, Bismuth, Antimony, ArsenicPast ProducerArgentite, Chalcopyrite, Galena, Gold, Pyrite
Alabama-California MineSilver, Gold, Lead, Arsenic, Bismuth, AntimonyPast Producer1860
ChicagoGold, Lead, Copper, SilverUnknown
Davenport DepositSilicaOccurrence
Eclipse ConsolidatedGold, Copper, Silver, Lead, ZincPast ProducerArgentite, Galena, Gold, Pyrite, Sphalerite
Gold BlossomGold, Silver, Lead, Zinc, Copper, ArsenicPast ProducerGold, Pyrite, Sphalerite, Tetrahedrite
Golden StagGold, Silver, MolybdenumPast ProducerGold, Molybdenite
HathawayGold, Lead, Silver, Zinc, Copper, ArsenicPast ProducerChalcopyrite, Galena, Gold, Marcasite, Pyrite
Highway Forty MineGold, Lead, Silver, CopperUnknown
MargueriteGold, Copper, LeadPast ProducerChalcopyrite, Galena, Gold, Pyrite

Every working recorded in Placer County

Storms near this place

7 since 2000

Regional context, not property-specific evidence. The National Weather Service names Newcastle in 7 storm reports between 2000 and 2025: 4 flood, 1 heavy rain, 1 thunderstorm wind, 1 lightning. 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.

WhenEvent Place namedHarm What the report says
May 2024LightningNewcastle$90,000A lightning strike resulted in a mobile home fire around 6:15 pm PDT on Nob Hill Drive in the Castle City Mobile Home Park. The mobile home was destroyed. There were no injuries.
November 2015Thunderstorm WindNewcastle$20,000A mobile home in Newcastle had the outer roof and carport ripped off around 2:13 pm PST, with little other damage to neighboring home except for some tree branches. The damage was determined to due to straight line winds from a microburst.
February 2025FloodNewcastle-California Highway Patrol reported roadway flooding due to creek overflow from heavy rain.
December 2025FloodNewcastle-California Highway Patrol reported 2 lanes flooded on Interstate 80 West just West of Newcastle Road due to heavy rain.
December 2025FloodNewcastle-California Highway Patrol reported roadway flooding from heavy rain at Newcastle Road and Castle Oaks Court.
January 2023FloodNewcastle-Placer County Sheriff reported a large boulder and small mudslide in the roadway on Taylor Road near Highway 193.
January 2000Heavy RainNewcastle-no account filed

Every storm recorded in Placer 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
Ophir1.3 miles33
Penryn2.4 miles28
Gold Hill3.2 miles27
Auburn3.4 miles33
Millertown (historical)3.4 miles33
Bickford Ranch4.0 miles28
Lakeshore4.2 miles27
Virginiatown4.7 miles27

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 NewcastleAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q3131990The 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 1659218. 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.