Williamsport, Pennsylvania ZIP Codes
- ZIP records
2 - Sum of listed ZIP population estimates
53,592 - Counties represented
1 - Population range
10,488–43,104 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 17701 | Williamsport | Lycoming | 43,104 |
| 2 | 17702 | Williamsport | Lycoming | 10,488 |
Counties represented
All ZIP Codes in Williamsport
Browse all ZIP data for Pennsylvania
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.