100 Largest ZIP Codes in the United States by Population in Lehigh County, Pennsylvania
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Lehigh County, Pennsylvania.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 18102 | ALLENTOWN | PA | 51,640 |
| 2 | 18103 | ALLENTOWN | PA | 48,344 |
| 3 | 18104 | ALLENTOWN | PA | 46,259 |
| 4 | 18018 | BETHLEHEM | PA | 31,479 |
| 5 | 18052 | WHITEHALL | PA | 29,286 |
| 6 | 18062 | MACUNGIE | PA | 26,722 |
| 7 | 18049 | EMMAUS | PA | 18,727 |
| 8 | 18109 | ALLENTOWN | PA | 17,745 |
| 9 | 18036 | COOPERSBURG | PA | 14,532 |
| 10 | 18031 | BREINIGSVILLE | PA | 12,337 |
| 11 | 18080 | SLATINGTON | PA | 11,251 |
| 12 | 18032 | CATASAUQUA | PA | 9,468 |
| 13 | 18034 | CENTER VALLEY | PA | 9,228 |
| 14 | 18069 | OREFIELD | PA | 8,593 |
| 15 | 18078 | SCHNECKSVILLE | PA | 7,543 |
| 16 | 18037 | COPLAY | PA | 7,360 |
| 17 | 18106 | ALLENTOWN | PA | 6,759 |
| 18 | 18101 | ALLENTOWN | PA | 5,673 |
| 19 | 18011 | ALBURTIS | PA | 5,639 |
| 20 | 18066 | NEW TRIPOLI | PA | 5,612 |
| 21 | 18051 | FOGELSVILLE | PA | 3,390 |
| 22 | 18092 | ZIONSVILLE | PA | 3,078 |
| 23 | 18053 | GERMANSVILLE | PA | 2,565 |
| 24 | 18087 | TREXLERTOWN | PA | 762 |
| 25 | 18059 | LAURYS STATION | PA | 728 |
| 26 | 18079 | SLATEDALE | PA | 550 |
| 27 | 18065 | NEFFS | PA | 271 |
| 28 | 18046 | EAST TEXAS | PA | 142 |