34 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 6790 | Torrington | 35,544 |
| 6098 | Winsted | 10,200 |
| 6013 | Burlington | 9,613 |
| 6057 | New Hartford | 5,922 |
| 6791 | Harwinton | 5,565 |
| 6759 | Litchfield | 5,436 |
| 6063 | Barkhamsted | 3,248 |
| 6756 | Goshen | 3,013 |
| 6018 | Canaan | 2,630 |
| 6069 | Sharon | 2,562 |
| 6783 | Roxbury | 2,184 |
| 6763 | Morris | 2,078 |
| 6068 | Salisbury | 2,034 |
| 6757 | Kent | 1,987 |
| 6039 | Lakeville | 1,955 |
| 6754 | Cornwall Bridge | 1,849 |
| 6058 | Norfolk | 1,819 |
| 6777 | New Preston Marble Dale | 1,802 |
| 6778 | Northfield | 1,618 |
| 6021 | Colebrook | 1,463 |
| 6031 | Falls Village | 1,385 |
| 6027 | East Hartland | 1,376 |
| 6750 | Bantam | 1,324 |
| 6793 | Washington | 1,270 |
| 6794 | Washington Depot | 953 |
| 6785 | South Kent | 943 |
| 6796 | West Cornwall | 843 |
| 6061 | Pine Meadow | 762 |
| 6065 | Riverton | 671 |
| 6024 | East Canaan | 570 |
| 6091 | West Hartland | 176 |
| 6753 | Cornwall | 50 |
| 6758 | Lakeside | 22 |
| 6079 | Taconic | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 34 ZCTAs in Northwest Hills Planning Region, Connecticut (US Census).