18101 vs 18102 ZIP Codes
Allentown, PA · Allentown, PA
| Metric | 18101 | 18102 |
|---|---|---|
| City | Allentown | Allentown |
| County | Lehigh | Lehigh |
| State | Pennsylvania | Pennsylvania |
| Time zone | Eastern Time | Eastern Time |
| Population | 3,897 | 49,779 |
Demographic figures come from U.S. Census Bureau / ACS data included in the source ZIP dataset; many ZIP codes have no demographic figures in that dataset.