West Mifflin ZIP Codes — Allegheny County, PA

There are 2 unique ZIP codes in West Mifflin, Pennsylvania. Area code: 412.

ZIP codes

13.00

sq mi land

0.19

sq mi water

412

area code

West Mifflin, PA ZIP code map

About West Mifflin, PA

West Mifflin is a vibrant borough located in Allegheny County, Pennsylvania. Known for its rich history and close-knit community, West Mifflin blends suburban charm with access to urban amenities. The borough offers a variety of recreational activities and local attractions that make it an appealing place to live and visit.

Location & geography

West Mifflin is situated approximately 10 miles southeast of downtown Pittsburgh, making it accessible to the larger metropolitan area. It is surrounded by several neighboring cities, including Homestead, which is about 4 miles away, and Pittsburgh, approximately 10 miles to the northwest. The total land area of West Mifflin is 25.93 square miles, with a small water area of 0.39 square miles, contributing to its diverse terrain and outdoor opportunities.

Community & economy

The community in West Mifflin is characterized by its friendly atmosphere and a sense of belonging among residents. The borough has a mix of light industry and retail businesses that support the local economy, providing jobs and services for its citizens. Daily life in West Mifflin often includes local events, community gatherings, and a range of recreational activities in parks and recreational facilities.

Transportation

West Mifflin is well-connected by major highways, including U.S. Route 885 and PA Route 51, which provide convenient access to Pittsburgh and the surrounding areas. The nearest airport is the Pittsburgh International Airport, located about 30 miles away, offering domestic and international flights. Public transit options are available, providing residents with easy transportation to nearby cities and attractions.

History

West Mifflin was established in the late 18th century and has since evolved into a thriving community known for its industrial roots. Historically, the borough was significant for steel manufacturing and coal mining, which played a pivotal role in its development. Notable events in West Mifflin's history include the growth of the amusement park industry, particularly with the opening of Kennywood Park, which has been a staple attraction since the late 1800s.

Did you know?

A surprising fact about West Mifflin is that it is home to Kennywood Park, a historic amusement park that has been recognized as a National Historic Landmark. The borough also features a variety of parks and natural spaces that highlight its commitment to outdoor recreation.

ZIP codes for West Mifflin, PA (2)

ZIP code	City	County	Map
15122	West Mifflin	Allegheny	View map
15123	West Mifflin	Allegheny	View map

Demographics & statistics

19,223

Population

46.3

Median age

$63,087

Median household income

$34,143

Per capita income

$60,050

Median home value

$359

Median monthly rent

39.1%

Home ownership

6.8%

Poverty rate

4.5%

Unemployment

7,240

Housing units

61.0%

Bachelor's or higher

Age distribution

Male Female

267

Under 5

535

323

5–9

649

450

10–14

903

347

15–19

696

314

20–24

630

832

25–34

1,669

555

35–44

1,113

903

45–54

1,812

493

55–59

990

609

60–64

1,221

735

65–74

1,475

393

75–84

789

173

85+

347

← Male

Female →

Age summary

Group	Count	%
Under 18	3,834	26.6%
18 and over	15,389	73.4%
65 and over	3,912	10.2%
Median age	46.3 years

Race & ethnicity

White 82.8%

Black or African American 10.6%

Two or more races 3.4%

Asian 1.9%

Hispanic or Latino 1%

Other race 0.1%

American Indian / Alaska Native 0.1%

Group	Count	%
White	16,072	82.8%
Black or African American	2,063	10.6%
Two or more races	663	3.4%
Asian	376	1.9%
Hispanic or Latino	185	1%
Other race	25	0.1%
American Indian / Alaska Native	24	0.1%

Household income

Under $10k 3.3%

$10k–$15k 1.6%

$15k–$25k 5.2%

$25k–$35k 3.9%

$35k–$50k 5.7%

$50k–$75k 8.6%

$75k–$100k 7.8%

$100k–$150k 9.1%

$150k–$200k 2.7%

$200k+ 2.5%

Range	% of households
Under $10k	3.3%
$10k–$15k	1.6%
$15k–$25k	5.2%
$25k–$35k	3.9%
$35k–$50k	5.7%
$50k–$75k	8.6%
$75k–$100k	7.8%
$100k–$150k	9.1%
$150k–$200k	2.7%
$200k+	2.5%
Median income	$63,087

Housing

Home values

Under $50k 3.0%

$50k–$100k 15.5%

$100k–$150k 15.6%

$150k–$200k 8.7%

$200k–$300k 5.0%

$300k–$500k 2.2%

$500k–$1M 0.2%

Housing overview

Metric	Value
Median home value	$60,050
Median rent / month	$359
Owner occupied	39.1%
Renter occupied	11.0%
Vacant	4.7%
Single-family detached	38.2%
Large apartment buildings	4.9%
Mobile homes	1.1%
Median rooms	2.9
Avg household size (owned)	1.18

Year built

Era	%
2020 or later	0.1%
2010–2019	0.5%
2000–2009	0.8%
1990–1999	1.8%
1980–1989	3.8%
1970–1979	4.3%
1960–1969	5.9%
1950–1959	18.0%
1940–1949	7.7%
1939 or earlier	7.3%

Bedrooms

Size	% of units
No bedroom (studio)	1.4%
1 bedroom	3.2%
2 bedrooms	14.2%
3 bedrooms	25.6%
4 bedrooms	4.6%
5+ bedrooms	1.1%

Vehicles per household

Vehicles	% of households
No vehicle	4.9%
1 vehicle	18.4%
2 vehicles	18.5%
3 or more	8.3%

Heating fuel

Fuel type	%
Utility gas	44.9%
Electricity	3.7%
Propane / LP gas	0.3%
Fuel oil	0.6%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	3,404	20.8%
Cohabiting couple	755	4.6%
Male householder, no spouse	1,612	9.9%
Female householder, no spouse	2,413	14.8%
Households with children under 18	1,837	11.2%
Households with seniors (65+)	2,850	17.4%
Average household size	1.16

Marital status

Status	Male	Female
Never married	69.5%	14.8%
Married	22.7%	21.4%
Separated	0.9%	0.7%
Widowed	2.2%	6.6%
Divorced	4.9%	6.6%

Education

Less than 9th grade 0.6%

Some HS, no diploma 2.3%

HS graduate 19.0%

Some college, no degree 10.6%

Associate's degree 6.6%

Bachelor's degree 57.1%

Graduate / professional 3.9%

Metric	%
HS diploma or higher	97.2%
Bachelor's or higher	61.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	181	27.3%
Kindergarten	116	1.5%
Elementary school	1,873	23.7%
High school	955	12.1%
College / grad school	829	35.5%

Employment

Industry of employment

Other services 53.8%

Education & healthcare 12.0%

Professional & management 6.1%

Retail trade 5.2%

Finance & real estate 4.7%

Arts, food & hospitality 4.2%

Manufacturing 4.1%

Construction 3.8%

Transportation & utilities 3.3%

Public administration 1.7%

Wholesale trade 0.8%

Information 0.5%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	67.1%
Service	8.7%
Sales & office	12.4%
Natural resources & construction	4.9%
Production & transportation	7.1%

Employment type

Type	%
Private sector	93.9%
Government	4.9%
Self-employed	1.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	36.5%
Carpool	5.4%
Public transit	2.9%
Walk	0.7%
Other means	0.6%
Avg commute (minutes)	14.6

Poverty

All people 6.8%

Under 18 years 14.3%

18 and over 4.9%

Married-couple families 2.8%

Female-led households 12.4%

Income support

Source	% of households
Social Security	18.6%
Retirement income	15.5%
Supplemental Security	3.2%
Cash public assistance	2.6%
Food stamps / SNAP	7.9%

Health indicators

Condition	%
High blood pressure	17.7%
High cholesterol	16.2%
Heart disease	4.0%
Stroke	1.8%
Asthma	5.2%
Arthritis	15.9%
Kidney disease	1.7%
Pulmonary disease	4.2%
Cancer	4.1%

Behavior / access	%
Binge drinking	9.2%
No physical activity	12.6%
Less than 7 hrs sleep	17.7%
Fair or poor health	7.6%
Poor mental health	7.8%
Poor physical health	5.6%
No health insurance	4.8%
Visited doctor (checkup)	39.6%
Visited dentist	32.6%
Cholesterol screening	45.5%
Teeth loss	7.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,169	3.8%

Disability	%
Any disability	8.6%
Under 18	9.0%
18–64 years	5.1%
65 and over	18.9%

Health insurance coverage

Type	%
Private insurance	84.7%
Public insurance	22.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	18,421	97.9%
Spanish	202	17.2%
Other Indo-European	25	16.7%
Asian & Pacific Islander	151	0.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	18,916	82.6%
Born in same state	18,856	82.4%
Born in different state	16,985	60.9%
Foreign born	60	0.2%
Naturalized citizen	307	17.5%
Not a US citizen	214	35.0%

Ancestry

Ancestry	Count	%
Italian	3,685	19.2%
French	1,194	6.2%
Irish	1,154	6%
Arab	268	1.4%

Ancestry	Count	%
Norwegian	186	1%
English	163	0.8%
German	12	0.1%
Polish	11	0.1%

Technology access

Metric	% of households
Computer access	21.3%
Internet access	45.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does West Mifflin, PA have?

West Mifflin, PA has two ZIP codes: 15122 and 15123. Each ZIP code serves a distinct delivery area within the city and surrounding region.