| | 0913047360 | Middletown town | Lower Connecticut River
Valley Planning Region | CT | Active government
consolidated with another
government with a single
set of officials C |
| | 0913014300 | Chester town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913015350 | Clinton town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913018080 | Cromwell town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913019130 | Deep River town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913020810 | Durham town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913022280 | East Haddam town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913022490 | East Hampton town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913026270 | Essex town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |
| | 0913035230 | Haddam town | Lower Connecticut River
Valley Planning Region | CT | Active government
providing primary
general-purpose functions A |