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