| Place | ID | FIPS |
| Capitol Planning Region | 09110 | 09110 |
| Capitol Planning Region | 09110 | 09110 |
| Capitol Planning Region | 09110 | 09110 |
| Greater Bridgeport Planning Region | 09120 | 09120 |
| Greater Bridgeport Planning Region | 09120 | 09120 |
| Greater Bridgeport Planning Region | 09120 | 09120 |
| Lower Connecticut River Valley Planning Region | 09130 | 09130 |
| Lower Connecticut River Valley Planning Region | 09130 | 09130 |
| Lower Connecticut River Valley Planning Region | 09130 | 09130 |
| Naugatuck Valley Planning Region | 09140 | 09140 |
| Naugatuck Valley Planning Region | 09140 | 09140 |
| Naugatuck Valley Planning Region | 09140 | 09140 |
| Northeastern Connecticut Planning Region | 09150 | 09150 |
| Northeastern Connecticut Planning Region | 09150 | 09150 |
| Northeastern Connecticut Planning Region | 09150 | 09150 |
| Northwest Hills Planning Region | 09160 | 09160 |
| Northwest Hills Planning Region | 09160 | 09160 |
| Northwest Hills Planning Region | 09160 | 09160 |
| South Central Connecticut Planning Region | 09170 | 09170 |
| South Central Connecticut Planning Region | 09170 | 09170 |
| South Central Connecticut Planning Region | 09170 | 09170 |
| Southeastern Connecticut Planning Region | 09180 | 09180 |
| Southeastern Connecticut Planning Region | 09180 | 09180 |
| Southeastern Connecticut Planning Region | 09180 | 09180 |
| Western Connecticut Planning Region | 09190 | 09190 |
| Western Connecticut Planning Region | 09190 | 09190 |
| Western Connecticut Planning Region | 09190 | 09190 |
