34 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 6790 | Torrington | 35,563 |
| 6098 | Winsted | 10,197 |
| 6013 | Burlington | 9,557 |
| 6057 | New Hartford | 6,078 |
| 6759 | Litchfield | 5,550 |
| 6791 | Harwinton | 5,539 |
| 6063 | Barkhamsted | 3,320 |
| 6756 | Goshen | 3,001 |
| 6018 | Canaan | 2,678 |
| 6069 | Sharon | 2,534 |
| 6068 | Salisbury | 2,074 |
| 6783 | Roxbury | 2,061 |
| 6763 | Morris | 2,035 |
| 6757 | Kent | 2,029 |
| 6058 | Norfolk | 1,975 |
| 6754 | Cornwall Bridge | 1,912 |
| 6039 | Lakeville | 1,878 |
| 6021 | Colebrook | 1,594 |
| 6777 | New Preston Marble Dale | 1,570 |
| 6031 | Falls Village | 1,426 |
| 6778 | Northfield | 1,409 |
| 6793 | Washington | 1,381 |
| 6750 | Bantam | 1,333 |
| 6027 | East Hartland | 1,230 |
| 6794 | Washington Depot | 971 |
| 6785 | South Kent | 904 |
| 6796 | West Cornwall | 799 |
| 6065 | Riverton | 723 |
| 6061 | Pine Meadow | 602 |
| 6024 | East Canaan | 534 |
| 6091 | West Hartland | 185 |
| 6753 | Cornwall | 28 |
| 6758 | Lakeside | 24 |
| 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).