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Summary for Saint Helena

About Saint Helena (Click for our profile page)

Located in: Napa County (see below)

Typical Abbreviation: St. Helena

Time Zone: Saint Helena lies in the Pacific Time Zone (PST/PDT)

Telephone Area Codes: 707 & 369<1>

ZIP Code: 94574<2>

Elevation: 240 feet [73.15 m] above sea level<3>

From the 2010 US Census (For more detail, see our Census Page for Saint Helena)

Population

Year	Population
2019 Est:<4>	6,034 (3.78% increase since 2010)
2010:	5,814 (2.29% decrease since 2000)
2000:	5,950

Total Area:<5> 5.03 sq. miles [13 km²]

Housing Units:<6> 2,776

Official Website: www.city.ci.st-helena.ca.us/

GPS Coordinates (Latitude/Longitude)<7>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Saint Helena:

Lat: 38.503900° (or 38°30'14" N)

Lon: -122.468000° (or -122°28'4" W)

USGS Topo Map: Saint Helena<8>

Federal GNIS/FIPS Codes for Saint Helena

GNIS ID: 2411758

FIPS State / Place Code: 06 / 64140

(For more about Federal Codes, see our Misc Page for Saint Helena)

About Napa County

The city of Napa is the County Seat for Napa County.

From the 2010 US Census (For more detail, see our Census Page for Napa)

Population

Year	Population
2019 Est:	137,744 (0.72% increase since 2010)
2010	136,759 (10.04% increase since 2000)
2000:	124,279

Total Area: 788 sq. miles [2,042.4 km²] - of which 5.1% is water (40.22 sq. miles [104.2 km²])

Housing Units: 54,759

Official Website: https://www.countyofnapa.org/

Federal GNIS/FIPS Codes for Napa

GNIS ID: 277292

FIPS State / County Code: 06 / 055

(For more about Federal Codes, see our Misc Page for Saint Helena)

About California

From the US Census

Population

Year	Population
2019 Est:	39,437,610 (5.86% increase since 2010)
2010:	37,253,956 (9.99% increase since 2000)
2000:	33,871,648

Websites for State of California

Official Website: https://www.ca.gov/

Tourism: https://www.visitcalifornia.com/

Parks: https://www.parks.ca.gov/

Fishing: https://www.wildlife.ca.gov/Fishing

Hunting: https://wildlife.ca.gov/Hunting

Federal GNIS/FIPS Codes for State of California

GNIS ID: 1779778

FIPS State: 06

(For more about Federal Codes, see our Misc Page for Saint Helena)

Footnotes ...

<1>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 707 code has been Overlayed with the 369 area code. New phone numbers in the Saint Helena area will be assigned with one of these codes: 707 or 369. As a result, placing a call in the Saint Helena area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Saint Helena). When looking for a ZIP Code, whether Saint Helena or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<3>	The elevation is an estimate for the area around Saint Helena - it will be higher in some places and lower in others.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Saint Helena. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<7>	Longitude & latitude values may not be the geographic center of Saint Helena, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<8>	Name of the USGS 7.5 Minute topographic map which includes Saint Helena.