ZIP code 15123
Where is ZIP code 15123?
West Mifflin, Pennsylvania
Allegheny County · Standard ZIP code
ZIP code 15123 belongs to West Mifflin, Pennsylvania in Allegheny County. 15123 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 412 and 878. About 2 people live in the 15123 area. The closest ZIP codes are 15230 (Pittsburgh, 0 mi north), 15240 (Pittsburgh, 0 mi north) and 15242 (Pittsburgh, 0 mi north).
| ZIP code | 15123 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | West Mifflin |
| State | Pennsylvania (PA) |
| County | Allegheny County |
| Time zone | Eastern Time · now |
| Area codes | 412, 878 |
| Coordinates | 40.4344, -80.0248 map |
| 3-digit prefix | 151 |
Population and income in 15123
| Population | 2 · lower than 100% of Pennsylvania ZIP codes |
|---|---|
| People per square mile | 29 · lower than 91% of Pennsylvania ZIP codes |
| Men / women | 100% / 0.0% |
| Income per person | $0 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 100% of adults 25+ |
| Housing units | 80 |
| Households | 0 |
| Land area | 0.07 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 15123. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 15123
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 15230 | Pittsburgh, PA | 0 mi N | PO Box only |
| 15240 | Pittsburgh, PA | 0 mi N | PO Box only |
| 15242 | Pittsburgh, PA | 0 mi N | PO Box only |
| 15244 | Pittsburgh, PA | 0 mi N | PO Box only |
| 15250 | Pittsburgh, PA | 0 mi N | Unique |
| 15251 | Pittsburgh, PA | 0 mi N | Unique |
| 15252 | Pittsburgh, PA | 0 mi N | Unique |
| 15253 | Pittsburgh, PA | 0 mi N | PO Box only |
| 15254 | Pittsburgh, PA | 0 mi N | Unique |
| 15255 | Pittsburgh, PA | 0 mi N | Unique |
| 15257 | Pittsburgh, PA | 0 mi N | Unique |
| 15258 | Pittsburgh, PA | 0 mi N | Unique |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 15123 or measure the distance to another ZIP code.
How to address mail to 15123
123 MAIN ST
WEST MIFFLIN PA 15123
Put the city, the two-letter state code and the ZIP code on the last line. Avoid W Mifflin/Pleasant Hills and West Mifflin Century Mall: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (15123-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in West Mifflin, PA
All West Mifflin ZIP codes with population and income →
Questions
- What city is ZIP code 15123?
- 15123 is a West Mifflin, Pennsylvania ZIP code.
- What county is 15123 in?
- ZIP code 15123 is in Allegheny County, Pennsylvania.
- What time zone is ZIP code 15123 in?
- 15123 is in the Eastern Time zone (America/New_York).
- What area code is 15123?
- Phone numbers in ZIP code 15123 use area codes 412 and 878.
- What is the population of ZIP code 15123?
- About 2 people live in ZIP code 15123, according to the Census Bureau’s American Community Survey (2020–2024).
- What ZIP codes are near 15123?
- The nearest ZIP codes to 15123 are 15230 (Pittsburgh, 0 miles), 15240 (Pittsburgh, 0 miles), 15242 (Pittsburgh, 0 miles) and 15244 (Pittsburgh, 0 miles).