| Localité | Code postal |
|---|---|
| Amenia, Dutchess | 12501 |
| Annandale, Dutchess | 12504 |
| Annandale on Hudson, Dutchess | 12504 |
| Arlington, Dutchess | 12603 |
| Bangall, Dutchess | 12506 |
| Barrytown, Dutchess | 12507 |
| Beacon, Dutchess | 12508 |
| Billings, Dutchess | 12510 |
| Castle Point, Dutchess | 12511 |
| Chelsea, Dutchess | 12512 |
| Clinton Corners, Dutchess | 12514 |
| Dover Plains, Dutchess | 12522 |
| East Fishkill, Dutchess | 12533 |
| Fishkill, Dutchess | 12524 |
| Gallatin, Dutchess | 12567 |
| Glenham, Dutchess | 12527 |
| Holmes, Dutchess | 12531 |
| Hopewell, Dutchess | 12533 |
| Hopewell Junction, Dutchess | 12533 |
| Hughsonville, Dutchess | 12537 |
| Hyde Park, Dutchess | 12538 |
| La Grange, Dutchess | 12540 |
| Lagrangeville, Dutchess | 12540 |
| Milan, Dutchess | 12571 |
| Millbrook, Dutchess | 12545 |
| Millerton, Dutchess | 12546 |