26 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 06239 | Danielson | 11,594 |
| 06260 | Putnam | 9,227 |
| 06234 | Brooklyn | 8,526 |
| 06374 | Plainfield | 7,884 |
| 06281 | Woodstock | 7,417 |
| 06241 | Dayville | 6,317 |
| 06354 | Moosup | 5,840 |
| 06331 | Canterbury | 5,102 |
| 06259 | Pomfret Center | 4,455 |
| 06255 | North Grosvenordale | 4,442 |
| 06278 | Ashford | 4,345 |
| 06277 | Thompson | 4,023 |
| 06377 | Sterling | 2,905 |
| 06384 | Voluntown | 2,812 |
| 06247 | Hampton | 2,286 |
| 06235 | Chaplin | 2,116 |
| 06242 | Eastford | 1,255 |
| 06332 | Central Village | 952 |
| 06282 | Woodstock Valley | 902 |
| 06262 | Quinebaug | 787 |
| 06263 | Rogers | 320 |
| 06264 | Scotland | 214 |
| 06387 | Wauregan | 184 |
| 06373 | Oneco | 137 |
| 06243 | East Killingly | 107 |
| 06258 | Pomfret | 79 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 26 ZCTAs in Northeastern CT Planning Region, Connecticut (US Census).