15122 ZIP Code — West Mifflin, PA

Allegheny County, Pennsylvania

ZIP code 15122 is located in West Mifflin, Pennsylvania, within Allegheny County. It covers approximately 12.93 square miles and serves a population of 19,220 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 412.

About ZIP code 15122

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1950s, giving the area an established character. Median home value is $120,100. Owner-occupancy is high at 78%, well above the national average.

Median household income is $63,097. 37% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Overall, ZIP code 15122 reflects a community defined by high homeownership and a significant Social Security-dependent population.

19,220

population

12.93

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

15122 ZIP code map

Cities in ZIP code 15122

Below are the cities the US Postal Service accepts for ZIP code 15122. Using any city not on this list may result in mail delivery delays.

City	Status
West Mifflin	Acceptable
West Mifflin	Acceptable
West Mifflin	Preferred

Nearby ZIP codes

15034 Dravosburg (1.2 mi) 15120 Homestead (2.3 mi) 15045 Glassport (2.5 mi) 15110 Duquesne (2.7 mi) 15207 Pittsburgh (2.8 mi) 15132 Mckeesport (3.2 mi) 15133 Mckeesport (3.3 mi) 15104 Braddock (3.4 mi) 15227 Pittsburgh (3.9 mi) 15236 Pittsburgh (4 mi) 15218 Pittsburgh (4.3 mi) 15112 East Pittsburgh (4.5 mi)

Demographics updated 05/2026

Population
Total population	19,220
Population density	1,486 / sq mi
State FIPS	42
County FIPS	003

Geography
Land area	12.93 sq mi
Water area	0.19 sq mi
Latitude	40.3630
Longitude	-79.9017
Timezone	Eastern (ET)
Area code	412

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.6%	40.9%	39.8%
$50k – $100k	33.5%	29.6%	30.8%
$100k – $200k	17.5%	22.0%	22.4%
Over $200k	3.4%	7.4%	7.1%

Demographics & statistics

19,220

Population

1,486

People per sq mi

46.3

Median age

$63,097

Median household income

$34,148

Per capita income

$120,100

Median home value

$717

Median monthly rent

78.1%

Home ownership

13.5%

Poverty rate

9.0%

Unemployment

7,240

Housing units

21.9%

Bachelor's or higher

Age distribution

Male Female

400

Under 5

402

485

5–9

486

675

10–14

678

521

15–19

522

471

20–24

472

1,249

25–34

1,252

832

35–44

835

1,355

45–54

1,360

740

55–59

743

914

60–64

916

1,103

65–74

1,107

590

75–84

592

260

85+

260

← Male

Female →

Age summary

Group	Count	%
Under 18	3,833	19.9%
18 and over	15,387	80.1%
65 and over	3,912	20.4%
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	16,070	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	23	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.6%	40.9%	39.8%
$50k – $100k	33.5%	29.6%	30.8%
$100k – $200k	17.5%	22.0%	22.4%
Over $200k	3.4%	7.4%	7.1%

Under $10k 6.5%

$10k–$15k 3.1%

$15k–$25k 10.4%

$25k–$35k 7.7%

$35k–$50k 11.3%

$50k–$75k 17.1%

$75k–$100k 15.6%

$100k–$150k 18.1%

$150k–$200k 5.4%

$200k+ 4.9%

Range	% of households
Under $10k	6.5%
$10k–$15k	3.1%
$15k–$25k	10.4%
$25k–$35k	7.7%
$35k–$50k	11.3%
$50k–$75k	17.1%
$75k–$100k	15.6%
$100k–$150k	18.1%
$150k–$200k	5.4%
$200k+	4.9%
Median income	$63,097

Housing

Home values

Under $50k 6.0%

$50k–$100k 31.0%

$100k–$150k 31.2%

$150k–$200k 17.3%

$200k–$300k 9.9%

$300k–$500k 4.3%

$500k–$1M 0.4%

Housing overview

Metric	Value
Median home value	$120,100
Median rent / month	$717
Owner occupied	78.1%
Renter occupied	21.9%
Vacant	9.4%
Single-family detached	76.4%
Large apartment buildings	9.8%
Mobile homes	2.1%
Median rooms	5.8
Avg household size (owned)	2.36

Year built

Era	%
2020 or later	0.2%
2010–2019	1.0%
2000–2009	1.6%
1990–1999	3.6%
1980–1989	7.6%
1970–1979	8.5%
1960–1969	11.7%
1950–1959	36.0%
1940–1949	15.3%
1939 or earlier	14.5%

Bedrooms

Size	% of units
No bedroom (studio)	2.8%
1 bedroom	6.3%
2 bedrooms	28.3%
3 bedrooms	51.2%
4 bedrooms	9.2%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	9.7%
1 vehicle	36.8%
2 vehicles	36.9%
3 or more	16.6%

Heating fuel

Fuel type	%
Utility gas	89.7%
Electricity	7.4%
Propane / LP gas	0.6%
Fuel oil	1.1%
Wood	0.1%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	3,404	41.6%
Cohabiting couple	755	9.2%
Male householder, no spouse	1,612	19.7%
Female householder, no spouse	2,413	29.5%
Households with children under 18	1,837	22.4%
Households with seniors (65+)	2,850	34.8%
Average household size	2.32

Marital status

Status	Male	Female
Never married	38.9%	29.6%
Married	45.4%	42.8%
Separated	1.7%	1.3%
Widowed	4.4%	13.2%
Divorced	9.7%	13.1%

Education

Less than 9th grade 1.2%

Some HS, no diploma 4.6%

HS graduate 37.9%

Some college, no degree 21.2%

Associate's degree 13.2%

Bachelor's degree 14.1%

Graduate / professional 7.8%

Metric	%
HS diploma or higher	94.3%
Bachelor's or higher	21.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	180	4.6%
Kindergarten	116	2.9%
Elementary school	1,873	47.4%
High school	955	24.2%
College / grad school	828	21.0%

Employment

Industry of employment

Education & healthcare 24.0%

Professional & management 12.2%

Retail trade 10.3%

Finance & real estate 9.4%

Arts, food & hospitality 8.4%

Manufacturing 8.1%

Construction 7.5%

Other services 7.5%

Transportation & utilities 6.5%

Public administration 3.3%

Wholesale trade 1.6%

Information 1.0%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	34.1%
Service	17.3%
Sales & office	24.8%
Natural resources & construction	9.7%
Production & transportation	14.1%

Employment type

Type	%
Private sector	87.8%
Government	9.8%
Self-employed	2.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	72.9%
Carpool	10.8%
Public transit	5.8%
Walk	1.3%
Work from home	8.2%
Other means	1.1%
Avg commute (minutes)	29.1

Poverty

All people 13.5%

Under 18 years 28.6%

18 and over 9.8%

Married-couple families 5.6%

Female-led households 24.7%

Income support

Source	% of households
Social Security	37.1%
Retirement income	31.0%
Supplemental Security	6.3%
Cash public assistance	5.2%
Food stamps / SNAP	15.8%

Health indicators

Condition	%
Obesity	33.9%
High blood pressure	35.3%
High cholesterol	32.4%
Diabetes	11.4%
Heart disease	8.0%
Stroke	3.6%
Asthma	10.4%
Arthritis	31.7%
Kidney disease	3.3%
Pulmonary disease	8.4%
Cancer	8.1%

Behavior / access	%
Smoking	18.0%
Binge drinking	18.4%
No physical activity	25.1%
Less than 7 hrs sleep	35.3%
Depression	23.2%
Fair or poor health	15.2%
Poor mental health	15.5%
Poor physical health	11.2%
No health insurance	9.5%
Visited doctor (checkup)	79.2%
Visited dentist	65.1%
Cholesterol screening	90.9%
Teeth loss	15.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,169	7.6%

Disability	%
Any disability	17.2%
Under 18	18.0%
18–64 years	10.2%
65 and over	37.8%

Health insurance coverage

Type	%
Private insurance	69.4%
Public insurance	44.5%
No insurance	3.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	18,418	95.8%
Spanish	201	1.1%
Other Indo-European	24	0.1%
Asian & Pacific Islander	151	0.8%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	18,914	98.4%
Born in same state	18,854	98.1%
Born in different state	16,984	88.4%
Foreign born	60	0.3%
Naturalized citizen	306	1.6%
Not a US citizen	214	69.9%

Ancestry

Ancestry	Count	%
Italian	3,684	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	42.6%
Internet access	91.5%

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

Frequently asked questions about ZIP code 15122

What city is ZIP code 15122 in?

ZIP code 15122 is primarily assigned to West Mifflin, Pennsylvania.

What county is ZIP code 15122 in?

ZIP code 15122 falls within Allegheny County, Pennsylvania.

Does ZIP code 15122 have a large retiree population?

37% of households in ZIP code 15122 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 15122?

The median home value in ZIP code 15122 is $120,100.

What is the population of ZIP code 15122?

ZIP code 15122 has an estimated population of 19,220 residents, with a density of 1,486 people per square mile.

What is the median household income in ZIP code 15122?

The median household income in ZIP code 15122 is $63,097, below the national median of ~$75,000.

What timezone is ZIP code 15122 in?

ZIP code 15122 observes the EST timezone.