New York Gazetteer > New York ZIP Codes > Williamsville, NY ZIP Codes
Williamsville, NY ZIP Codes
- Cities in a ZIP Code may be referred to by more than one name or spelling.
- The US Postal Service considers
Williamsville an alternate city name for 2 Buffalo ZIP Codes.
- Select a ZIP Code on the map or from the list below, for more detailed information.
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| Williamsville, NY - PO Box ZIP Codes |
| 14231 |
| Williamsville, NY - Standard ZIP Codes |
| 14221 |
