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Summary for Unionville

So far, we found very little information about Unionville. The little that we've found leads us believe that the community is historic.<1>

We've added Unionville to our Gazetteer with the hope that we can develop more information. If you can help us with Unionville, please Contact Us.

About Unionville (Click for our profile page)

Our information shows that the community of Unionville is historic. The information below applies to the area where Unionville would have been located.

Time Zone: The area where Unionville was located is in the Pacific Time Zone (PST/PDT)

Telephone Area Code: 530

Elevation: 4,550 feet [1,386.84 m] above sea level<2>

GPS Coordinates (Latitude/Longitude)<3>

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

Lat: 39.473000° (or 39°28'22" N)

Lon: -120.853300° (or -120°51'11" W)

USGS Topo Map: Alleghany<4>

Federal GNIS/FIPS Codes for Unionville

GNIS ID: 1733188

FIPS State / Place Code: None

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

About Sierra County

The community of Downieville is the County Seat for Sierra County.

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

Population

Year	Population
2019 Est:<5>	3,005 (6.68% decrease since 2010)
2010	3,220 (9.42% decrease since 2000)
2000:	3,555

Total Area:<6> 962 sq. miles [2,492.1 km²]

Housing Units: <7> 2,328

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

Federal GNIS/FIPS Codes for Sierra

GNIS ID: 277310

FIPS State / County Code: 06 / 091

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

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 Unionville)

Footnotes ...

<1>	We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about Unionville, please let us know so that we can improve our accuracy.
<2>	The elevation is an estimate for the area around Unionville - it will be higher in some places and lower in others.
<3>	Longitude & latitude values may not be the geographic center of Unionville, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<4>	Name of the USGS 7.5 Minute topographic map which includes Unionville.
<5>	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.
<6>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Unionville. 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.
<7>	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).