34 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 13856 | Walton | 5,915 |
| 13753 | Delhi | 5,629 |
| 13838 | Sidney | 4,185 |
| 13783 | Hancock | 2,200 |
| 12776 | Roscoe | 2,046 |
| 12455 | Margaretville | 1,859 |
| 13775 | Franklin | 1,839 |
| 13839 | Sidney Center | 1,362 |
| 13757 | East Meredith | 1,121 |
| 13731 | Andes | 1,102 |
| 13788 | Hobart | 950 |
| 13752 | Delancey | 913 |
| 12434 | Grand Gorge | 892 |
| 12474 | Roxbury | 891 |
| 13782 | Hamden | 797 |
| 13739 | Bloomville | 792 |
| 13755 | Downsville | 737 |
| 13756 | East Branch | 665 |
| 13740 | Bovina Center | 607 |
| 13842 | South Kortright | 607 |
| 13750 | Davenport | 588 |
| 13786 | Harpersfield | 440 |
| 12760 | Long Eddy | 337 |
| 13751 | Davenport Center | 334 |
| 13804 | Masonville | 266 |
| 13860 | West Davenport | 266 |
| 13846 | Treadwell | 259 |
| 12421 | Denver | 238 |
| 13774 | Fishs Eddy | 230 |
| 13806 | Meridale | 168 |
| 12459 | New Kingston | 73 |
| 12438 | Halcottsville | 71 |
| 12441 | Highmount | 58 |
| 13847 | Trout Creek | 15 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 34 ZCTAs in Delaware County, New York (US Census).