| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Big Flats, Chemung | 14814 |
| Postal/ZIP Codes in Breesport, Chemung | 14816 |
| Postal/ZIP Codes in Chemung, Chemung | 14825 |
| Postal/ZIP Codes in Elmira, Chemung | 14901, 14903, 14904, 14905 |
| Postal/ZIP Codes in Elmira Heights, Chemung | 14903 |
| Postal/ZIP Codes in Erin, Chemung | 14838 |
| Postal/ZIP Codes in Horseheads, Chemung | 14845 |
| Postal/ZIP Codes in Lowman, Chemung | 14861 |
| Postal/ZIP Codes in Millport, Chemung | 14864 |
| Postal/ZIP Codes in Pine City, Chemung | 14871 |
| Postal/ZIP Codes in Pine Valley, Chemung | 14872 |
| Postal/ZIP Codes in Van Etten, Chemung | 14889 |
| Postal/ZIP Codes in Wellsburg, Chemung | 14894 |