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Pleasant Hill, California

42 topographic sheets cover this place, the earliest surveyed in 1897 and the latest in 1995. It stands in the Central Contra Costa census division. It lies in ZIP code area 94523. It lies near Ygnacio Valley. The Survey maps it on the Walnut Creek quadrangle. 34,613 people lived here at the 2020 count. It stands 52 feet above sea level.

Pleasant Hill within Contra Costa 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 Pleasant Hill, surveyed 1995
Topographic sheet of Pleasant Hill, surveyed 1897

On record in Pleasant Hill

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

Pleasant Hill grew from 33,152 to 34,613 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
201033,152
202034,613+1,461 (+4%)

Topographic sheets covering this place

21 surveys from 42 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

523 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 523 fires within 5 miles of Pleasant Hill between 1992 and 2020, burning about 1,064 acres in total. 3 started naturally. 85 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/undetermined192
Smoking90
Arson/incendiarism85
Equipment and vehicle use72
Misuse of fire by a minor58
Debris and open burning17
Power generation/transmission/distribution3
Recreation and ceremony3
Natural3

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 2015Power generation/transmission/distributionunder an acreSanta Clara UnitALHAMBRA VALLEY RD BRION
9 September 2010Missing data/not specified/undetermined1.0 acresCalifornia Department of Forestry & Fire Protectionnot named
8 September 2008Debris and open burningunder an acreCalifornia Department of Forestry & Fire Protectionnot named
7 September 2011Misuse of fire by a minorunder an acreSanta Clara Unitnot named
7 September 2010Smokingunder an acreCalifornia Department of Forestry & Fire Protectionnot named
7 September 2010Equipment and vehicle useunder an acreCalifornia Department of Forestry & Fire Protectionnot named
7 September 2010Smokingunder an acreCalifornia Department of Forestry & Fire Protectionnot named
7 September 2009Missing 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 Contra Costa County

Mines and quarries near this place

10 of 25 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 25 workings within 5 miles of Pleasant Hill: 8 occurrences, 6 past producers, 4 producers, 4 prospects. 4 still produce. What was taken out: Stone, Crushed/Broken, Stone, Calcium, Sand and Gravel, Construction. 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
Clark & SonsClayProspect
CowellLimestone, DimensionUnknown
Cowell SilverSilverUnknown
Cowell Silver Sand Co., LawsSilicaProducerSand
Mt. Diablo Lime Marl Co.Limestone, GeneralOccurrenceSedimentary
N. M. Ball SonsSand and Gravel, ConstructionPast Producer
Silver SandSand and Gravel, ConstructionUnknown
Henry Cowell Lime & Cement Co.CalciumPast Producer
Mt. Diablo Lime Marl Co.CalciumPast Producer
Unnamed LocationCalciumProspect

Every working recorded in Contra Costa County

Storms near this place

3 since 2017

Regional context, not property-specific evidence. The National Weather Service names Pleasant Hill in 3 storm reports between 2017 and 2019: 2 hail, 1 flood. 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
February 2019HailPleasant Hill-Accumulating hail reported on the 680 corridor in Contra Costa.
February 2017FloodPleasant Hill-Flooding in slow lane. I680 and Monument Blvd off ramp.
February 2018HailPleasant Hill-no account filed

Every storm recorded in Contra Costa 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
Hookston0.6 miles42
Las Juntas1.2 miles42
Bancroft1.2 miles42
Four Corners1.3 miles42
Sparkle1.4 miles42
Contra Costa Centre1.4 miles42
Waldon1.5 miles42
Meinert1.8 miles42

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 Pleasant HillAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q950926The 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 1659406. 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.