| Locality | Post Code |
|---|---|
| Mayville, Chautauqua | 14757 |
| Niobe, Chautauqua | 14758 |
| Panama, Chautauqua | 14767 |
| Portland, Chautauqua | 14769 |
| Ripley, Chautauqua | 14775 |
| Sheridan, Chautauqua | 14135 |
| Sherman, Chautauqua | 14781 |
| Silver Creek, Chautauqua | 14136 |
| Sinclairville, Chautauqua | 14782 |
| South Dayton, Chautauqua | 14138 |
| Stockton, Chautauqua | 14784 |
| Stow, Chautauqua | 14785 |
| Van Buren Bay, Chautauqua | 14166, 14048 |
| Van Buren Point, Chautauqua | 14166 |
| West Ellicott, Chautauqua | 14701 |
| Westfield, Chautauqua | 14787 |