34 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 13856 | Walton | 6,063 |
| 13753 | Delhi | 5,593 |
| 13838 | Sidney | 3,984 |
| 13783 | Hancock | 2,331 |
| 12776 | Roscoe | 2,072 |
| 12455 | Margaretville | 1,810 |
| 13775 | Franklin | 1,806 |
| 13839 | Sidney Center | 1,319 |
| 13757 | East Meredith | 1,274 |
| 13731 | Andes | 1,002 |
| 12434 | Grand Gorge | 984 |
| 13788 | Hobart | 959 |
| 13755 | Downsville | 888 |
| 13752 | Delancey | 868 |
| 12474 | Roxbury | 856 |
| 13739 | Bloomville | 801 |
| 13782 | Hamden | 730 |
| 13750 | Davenport | 711 |
| 13756 | East Branch | 694 |
| 13842 | South Kortright | 610 |
| 13740 | Bovina Center | 560 |
| 12760 | Long Eddy | 425 |
| 13846 | Treadwell | 369 |
| 13786 | Harpersfield | 366 |
| 13860 | West Davenport | 228 |
| 12421 | Denver | 224 |
| 13806 | Meridale | 222 |
| 13751 | Davenport Center | 209 |
| 13804 | Masonville | 190 |
| 13774 | Fishs Eddy | 148 |
| 12441 | Highmount | 105 |
| 12459 | New Kingston | 68 |
| 12438 | Halcottsville | 48 |
| 13847 | Trout Creek | 17 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 34 ZCTAs in Delaware County, New York (US Census).