15 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 03570 | Berlin | 9,383 |
| 03584 | Lancaster | 3,501 |
| 03598 | Whitefield | 3,396 |
| 03581 | Gorham | 3,246 |
| 03576 | Colebrook | 2,764 |
| 03582 | Groveton | 1,949 |
| 03588 | Milan | 1,633 |
| 03590 | North Stratford | 1,297 |
| 03592 | Pittsburg | 1,054 |
| 03583 | Jefferson | 1,013 |
| 03595 | Twin Mountain | 648 |
| 03597 | West Stewartstown | 527 |
| 03593 | Randolph | 465 |
| 03579 | Errol | 431 |
| 03575 | Bretton Woods | 11 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 15 ZCTAs in Coos County, New Hampshire (US Census).