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Summary for West Mifflin

About West Mifflin (Click for our profile page)

Located in: Allegheny County (see below)

Time Zone: West Mifflin lies in the Eastern Time Zone (EST/EDT)

Telephone Area Codes: 412, 724 & 878<1>

ZIP Codes: 15122, 15236<2>

Elevation: 1,000 feet [304.8 m] above sea level<3>

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

Population

Year	Population
2019 Est:<4>	19,702 (3.01% decrease since 2010)
2010:	20,313 (9.58% decrease since 2000)
2000:	22,464

Total Area:<5> 14.51 sq. miles [37.6 km²] - of which 2.03% is water (0.29 sq. miles [0.8 km²])

Housing Units:<6> 9,462

GPS Coordinates (Latitude/Longitude)<7>

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

Lat: 40.367300° (or 40°22'2" N)

Lon: -79.897300° (or -79°53'50" W)

USGS Topo Map: Glassport<8>

Federal GNIS/FIPS Codes for West Mifflin

GNIS ID: 1214837

FIPS State / Place Code: 42 / 83512

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

About Allegheny County

The community of Pittsburgh is the County Seat for {Allegheny County}.

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

Population

Year	Population
2019 Est:	1,216,045 (0.65% decrease since 2010)
2010	1,223,957 (4.5% decrease since 2000)
2000:	1,281,666

Total Area: 744 sq. miles [1,928.3 km²] - of which 1.94% is water (14.45 sq. miles [37.4 km²])

Housing Units: 589,201

Official Website: https://www.alleghenycounty.us/

Federal GNIS/FIPS Codes for Allegheny

GNIS ID: 1213657

FIPS State / County Code: 42 / 003

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

About Pennsylvania

From the US Census

Population

Year	Population
2019 Est:	12,798,883 (0.76% increase since 2010)
2010:	12,702,379 (3.43% increase since 2000)
2000:	12,281,054

Websites for Commonwealth of Pennsylvania

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

Tourism: https://visitpa.com/

Parks: https://www.pa.gov/agencies/dcnr

Fishing: https://www.pa.gov/agencies/fishandboat

Hunting: https://www.pa.gov/agencies/pgc

Federal GNIS/FIPS Codes for Commonwealth of Pennsylvania

GNIS ID: 1779798

FIPS State: 42

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

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 412 code has been Overlayed with one of the following codes: 724 or 878. New phone numbers in the West Mifflin area will be assigned with one of these codes: 412, 724 or 878. As a result, placing a call in the West Mifflin 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 community (such as West Mifflin). When looking for a ZIP Code, whether West Mifflin 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 West Mifflin - 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 West Mifflin. 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 West Mifflin, 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 West Mifflin.