15123 ZIP Code — West Mifflin, PA
Allegheny County, Pennsylvania
ZIP code 15123 is located in West Mifflin, Pennsylvania, within Allegheny County. It covers approximately 0.07 square miles and serves a population of 3 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 412.
3
population
0.07
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
15123 ZIP code map
Cities in ZIP code 15123
Below are the cities the US Postal Service accepts for ZIP code 15123. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| West Mifflin | Acceptable |
| West Mifflin | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 3 |
| Population density | 43 / sq mi |
| State FIPS | 42 |
| County FIPS | 003 |
| Geography | |
|---|---|
| Land area | 0.07 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 40.3386 |
| Longitude | -79.9377 |
| Timezone | Eastern (ET) |
| Area code | 412 |
Total population by age
Gender
Race & ethnicity
Demographics & statistics
3
Population
43
People per sq mi
20.5
Median age
$0
Median household income
$0
Per capita income
$0
Median home value
$0
Median monthly rent
0.0%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
0
Housing units
100.0%
Bachelor's or higher
Age distribution
Male
Female
0
5–9
1
0
20–24
1
0
35–44
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1 | 33.3% |
| 18 and over | 2 | 66.7% |
| 65 and over | 0 | 0.0% |
| Median age | 20.5 years | |
Race & ethnicity
White
66.7%
American Indian / Alaska Native
33.3%
| Group | Count | % |
|---|---|---|
| White | 2 | 66.7% |
| American Indian / Alaska Native | 1 | 33.3% |
Household income
Housing
Home values
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 0.0% |
| Renter occupied | 0.0% |
| Vacant | 0.0% |
| Single-family detached | 0.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 0.0 |
| Avg household size (owned) | 0.00 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 0.0% |
| 1960–1969 | 0.0% |
| 1950–1959 | 0.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 0.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 0.0% |
| 3 bedrooms | 0.0% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 0.0% |
| 2 vehicles | 0.0% |
| 3 or more | 0.0% |
Heating fuel
| Fuel type | % |
|---|
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 0 | 0.0% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 0 | 0.0% |
| Female householder, no spouse | 0 | 0.0% |
| Households with children under 18 | 0 | 0.0% |
| Households with seniors (65+) | 0 | 0.0% |
| Average household size | 0.00 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 100.0% | 0.0% |
| Married | 0.0% | 0.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 0.0% |
| Divorced | 0.0% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
0.0%
Some college, no degree
0.0%
Associate's degree
0.0%
Bachelor's degree
100.0%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 100.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 1 | 50.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 0 | 0.0% |
| College / grad school | 1 | 50.0% |
Employment
Industry of employment
Other services
100.0%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 100.0% |
| Service | 0.0% |
| Sales & office | 0.0% |
| Natural resources & construction | 0.0% |
| Production & transportation | 0.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 100.0% |
| Government | 0.0% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 0.0% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 100.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
Poverty
All people
0.0%
Under 18 years
0.0%
18 and over
0.0%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 0.0% |
| Retirement income | 0.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 0.0% |
| High blood pressure | 0.0% |
| High cholesterol | 0.0% |
| Diabetes | 0.0% |
| Heart disease | 0.0% |
| Stroke | 0.0% |
| Asthma | 0.0% |
| Arthritis | 0.0% |
| Kidney disease | 0.0% |
| Pulmonary disease | 0.0% |
| Cancer | 0.0% |
| Behavior / access | % |
|---|---|
| Smoking | 0.0% |
| Binge drinking | 0.0% |
| No physical activity | 0.0% |
| Less than 7 hrs sleep | 0.0% |
| Depression | 0.0% |
| Fair or poor health | 0.0% |
| Poor mental health | 0.0% |
| Poor physical health | 0.0% |
| No health insurance | 0.0% |
| Visited doctor (checkup) | 0.0% |
| Visited dentist | 0.0% |
| Cholesterol screening | 0.0% |
| Teeth loss | 0.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 0 | 0.0% |
| Disability | % |
|---|---|
| Any disability | 0.0% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 0.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 100.0% |
| Public insurance | 0.0% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 3 | 100.0% |
| Spanish | 1 | 33.3% |
| Other Indo-European | 1 | 33.3% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 2 | 66.7% |
| Born in same state | 2 | 66.7% |
| Born in different state | 1 | 33.3% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 1 | 33.3% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 1 | 33.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 0.0% |
| Internet access | 0.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 15123
What city is ZIP code 15123 in?
ZIP code 15123 is primarily assigned to West Mifflin, Pennsylvania.
What county is ZIP code 15123 in?
ZIP code 15123 falls within Allegheny County, Pennsylvania.
How educated is the population of ZIP code 15123?
100% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
Is Spanish widely spoken in ZIP code 15123?
Approximately 33% of households in ZIP code 15123 speak Spanish as a primary language.
Is ZIP code 15123 family-oriented?
33% of residents in ZIP code 15123 are under 18, reflecting a younger, family-oriented community.
What is the population of ZIP code 15123?
ZIP code 15123 has an estimated population of 3 residents, with a density of 44 people per square mile.
What timezone is ZIP code 15123 in?
ZIP code 15123 observes the EST timezone.