BlockBefore

Saint Helena, California

21 topographic sheets cover this place, the earliest surveyed in 1942 and the latest in 1972. It stands in the St. Helena census division. It lies in ZIP code area 94574. It stands on Sulphur Creek. The Survey maps it on the Saint Helena quadrangle. 5,430 people lived here at the 2020 count. It stands 253 feet above sea level.

Saint Helena within Napa County

Then and now

1942 to 1972

The same ground, surveyed 30 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Saint Helena, surveyed 1972
Topographic sheet of Saint Helena, surveyed 1942

On record in Saint Helena

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

2 figures

Saint Helena fell from 5,814 to 5,430 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
20105,814
20205,430-384 (-7%)

Topographic sheets covering this place

10 surveys from 21 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

231 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 231 fires within 5 miles of Saint Helena between 1992 and 2020, burning about 68,237 acres in total. 3 started naturally. 13 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/undetermined92
Equipment and vehicle use69
Debris and open burning34
Arson/incendiarism13
Power generation/transmission/distribution9
Smoking8
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
8 September 2014Equipment and vehicle useunder an acreSonoma-Lake Napa UnitSPRING
8 September 2004Equipment and vehicle useunder an acreSonoma-Lake Napa UnitWEST
6 September 2007Equipment and vehicle use1.0 acresSonoma-Lake Napa UnitSPRING WHITE 2
5 September 2003Missing data/not specified/undetermined4.0 acresSonoma-Lake Napa UnitSMOKEY OAK
28 September 2007Smokingunder an acreSonoma-Lake Napa UnitLAS POSADAS RD ANGWIN 22
28 September 1998Smokingunder an acreSonoma-Lake Napa UnitWILSON
28 September 1993Arson/incendiarismunder an acreSonoma-Lake Napa UnitWHITEHALL
27 September 2020Equipment and vehicle use67,484 acresSonoma-Lake Napa UnitGLASS

Settlements close enough to share some of these fires:

Every fire recorded in Napa County

Mines and quarries near this place

10 of 33 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 33 workings within 5 miles of Saint Helena: 14 occurrences, 7 prospects, 6 producers, 4 past producers. 6 still produce. What was taken out: Mercury, Sand and Gravel, Construction, Manganese, Perlite. 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
Glass Mountain DepositStone, Crushed/BrokenProspect
Napa Valley StoneStone, Crushed/BrokenProducer
StirlingIronOccurrenceHematite
Sullinger ClaimChromiumOccurrenceChromite
Sullinger ClaimChromiumProspect
Unnamed LocationIronUnknown
Annadel FarmPerliteProducer
Glass Mountain DepositStoneOccurrenceObsidian
S. Lenz and Son Basalt Quarry and Plant.StoneOccurrence
S. Lnz. and Sn Bslt Qrry and PlntStoneProspect

Every working recorded in Napa 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
Krug1.1 miles21
Thoman1.4 miles25
Barro1.9 miles21
Deer Park1.9 miles21
Zinfandel2.1 miles25
Sanitarium2.8 miles21
Bale4.0 miles24
Rutherford4.1 miles25

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 Saint HelenaAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q125733The 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 277588. 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.