ZIP code 15123: West Mifflin, PA
15123 is a ZIP code in West Mifflin, Pennsylvania, mainly in Allegheny County, part of the Pittsburgh, PA metro area. About 2 people live here.
- Population
- 2
- Median household income
- —
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- —
- Homeowners
- —of occupied homes
Shaded: ZIP code 15123's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 15123 details
| City | West Mifflin |
|---|---|
| State | Pennsylvania |
| County | Allegheny County |
| Metro area | Pittsburgh, PA |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 0.1 sq mi |
| Population density | 29 people per sq mi |
| Bachelor's degree or higher | 100% of adults 25+ |
| Center coordinates | 40.34819, -79.93483 |
ZIP codes near 15123
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 15236 | Pittsburgh, PA | 2.2 mi | 31,313 |
| 15122 | West Mifflin, PA | 2.3 mi | 18,816 |
| 15034 | Dravosburg, PA | 2.4 mi | 1,643 |
| 15227 | Pittsburgh, PA | 2.6 mi | 28,460 |
| 15045 | Glassport, PA | 3.0 mi | 4,368 |
| 15207 | Pittsburgh, PA | 3.5 mi | 10,961 |
| 15025 | Clairton, PA | 3.6 mi | 16,939 |
| 15120 | Homestead, PA | 3.6 mi | 18,029 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
About ZIP code 15123
What city is ZIP code 15123?
ZIP code 15123 is in West Mifflin, PA, in Allegheny County.
What county is ZIP code 15123 in?
15123 is mainly in Allegheny County, Pennsylvania.
What is the population of ZIP code 15123?
About 2 people live in ZIP code 15123, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 15123 in?
15123 is in Eastern Time (UTC−5). It observes daylight saving time.
What other ZIP codes does West Mifflin have?
West Mifflin, PA also uses 15122.