18011 vs 19539 ZIP Codes
Alburtis, PA · Mertztown, PA
| Metric | 18011 | 19539 |
|---|---|---|
| City | Alburtis | Mertztown |
| County | Lehigh | Berks |
| State | Pennsylvania | Pennsylvania |
| Time zone | Eastern Time | Eastern Time |
| Population | 5,450 | 4,597 |
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.