| Locality | Post Code |
|---|---|
| Amber, Onondaga | 13110 |
| Apulia Station, Onondaga | 13020 |
| Baldwinsville, Onondaga | 13027 |
| Bayberry, Onondaga | 13090 |
| Belgium, Onondaga | 13027 |
| Berwyn, Onondaga | 13084 |
| Brewerton, Onondaga | 13029 |
| Camillus, Onondaga | 13031 |
| Cardiff, Onondaga | 13084 |
| Carousel, Onondaga | 13290 |
| Cicero, Onondaga | 13039 |
| Clay, Onondaga | 13039, 13041 |
| Colvin, Onondaga | 13205 |
| Colvin Elmwood, Onondaga | 13205, 13207 |
| Cross Lake, Onondaga | 13080 |
| Delphi Falls, Onondaga | 13051 |
| Dewitt, Onondaga | 13214 |
| Dominion Park, Onondaga | 13090 |
| East Syracuse, Onondaga | 13057 |
| Eastwood, Onondaga | 13206 |
| Elbridge, Onondaga | 13060 |
| Elmwood, Onondaga | 13207 |
| Fabius, Onondaga | 13063 |
| Fayetteville, Onondaga | 13066 |
| Galeville, Onondaga | 13088 |
| Geddes, Onondaga | 13209 |