ZIP Code 15123
15123 is one of Pennsylvania's ZIP codes, delivering to addresses in West Mifflin, Allegheny County.
- City
- West Mifflin
- County
- Allegheny County
- State
- Pennsylvania
- Prefix
- 151xx
Where this code sits
15123 is part of the 151xx range, the group of codes handled by one mail processing centre. West Mifflin is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the West Mifflin page.
West Mifflin Pennsylvania ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 15123 delivers to without sharing its boundary.
ZIP codes nearest 15123
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 15028 | 0.0 mi | Coulters, PA |
| ZIP code 15230 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15240 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15242 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15244 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15250 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15251 | 0.0 mi | Pittsburgh, PA |
| ZIP code 15252 | 0.0 mi | Pittsburgh, PA |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 15123. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.