Allentown, PA ZIP codes
Allentown, Pennsylvania has 8 ZIP codes, including 1 PO Box ZIP. They are in Lehigh County.
- Population in these ZIPs
- 179,222
- Avg. median income
- $68,500population-weighted
- Typical home value
- $308,400population-weighted
- Metro area
- Allentown-Bethlehem-Easton, PA-NJ
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Allentown, PA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 18101 | Lehigh County | 6,120 | $44,773 | $210,000 |
| 18102 | Lehigh County | 51,001 | $43,085 | $225,300 |
| 18103 | Lehigh County | 48,746 | $72,895 | $313,600 |
| 18104 | Lehigh County | 48,683 | $94,601 | $399,100 |
| 18105 PO Box | Lehigh County | — | — | — |
| 18106 | Lehigh County | 6,226 | $92,813 | $445,200 |
| 18109 | Lehigh County | 18,446 | $58,031 | $271,300 |
| 18195 | Lehigh County | 0 | — | — |
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
Cities near Allentown
- Whitehall 4 mi
- East Texas 4 mi
- Emmaus 5 mi
- Catasauqua 5 mi
- Trexlertown 5 mi
- Orefield 6 mi
- Coplay 6 mi
- Center Valley 6 mi
- Macungie 7 mi
- Bethlehem 7 mi
- Schnecksville 8 mi
- Breinigsville 8 mi
Frequently asked questions
What is the ZIP code for Allentown, PA?
Allentown, PA has 8 ZIP codes: 18101, 18102, 18103, 18104, 18105, 18106, 18109 and 18195.
What county is Allentown, Pennsylvania in?
Allentown ZIP codes are in Lehigh County.
Which Allentown ZIP codes are PO Boxes?
18105 is a PO Box or single-organization ZIP code; it has no residential delivery area.