Connecticut planning regions
Every planning region in Connecticut, with the ZIP codes recorded in each. Pick one to see its full ZIP code list.
- planning regions
- 9
- ZIP codes
- 429
All Connecticut planning regions
| Planning region | ZIP codes | Largest city |
|---|---|---|
| Capitol Planning Region | 119 | Hartford |
| Greater Bridgeport Planning Region | 20 | Bridgeport |
| Lower Connecticut River Valley Planning Region | 25 | Middletown |
| Naugatuck Valley Planning Region | 41 | Waterbury |
| Northeastern Connecticut Planning Region | 31 | Abington |
| Northwest Hills Planning Region | 34 | Torrington |
| South Central Connecticut Planning Region | 48 | New Haven |
| Southeastern Connecticut Planning Region | 36 | Groton |
| Western Connecticut Planning Region | 64 | Stamford |
Not in a current county-equivalent
11 ZIP codes in Connecticut are recorded against a jurisdiction the Census Bureau no longer publishes, so they have no planning region page to sit under. The recorded name is shown unchanged.
- 06066 Vernon Rockville — recorded as Tolland
- 06255 North Grosvenordale — recorded as Windham
- 06268 Storrs Mansfield — recorded as Tolland
- 06269 Storrs Mansfield — recorded as Tolland
- 06279 Willington — recorded as Tolland
- 06333 East Lyme — recorded as New London
- 06334 Bozrah — recorded as New London
- 06481 Rockfall — recorded as Middlesex
- 06777 New Preston Marble Dale — recorded as Litchfield
- 06794 Washington Depot — recorded as Litchfield
- 06875 Redding Center — recorded as Fairfield
Scope every county-equivalent recorded in Connecticut. Source Census 2024 county Gazetteer (2024 Gazetteer) and GeoNames US postal codes (2026-07 postal dump). Updated . Names and boundaries follow the Census Bureau's current county-equivalent set, not the CT postal source's older names.