| Bridgeport | 1 | Greater Bridgeport Planning Region | 148,235 |
| Stamford | 2 | Western CT Planning Region | 136,735 |
| Waterbury | 3 | Naugatuck Valley Planning Region | 115,730 |
| Norwalk | 4 | Western CT Planning Region | 93,502 |
| Danbury | 5 | Western CT Planning Region | 86,385 |
| Fairfield | 6 | Greater Bridgeport Planning Region | 64,139 |
| Greenwich | 7 | Western CT Planning Region | 63,488 |
| Bristol | 8 | Naugatuck Valley Planning Region | 62,183 |
| Stratford | 9 | Greater Bridgeport Planning Region | 52,420 |
| Shelton | 10 | Naugatuck Valley Planning Region | 43,065 |
| Trumbull | 11 | Greater Bridgeport Planning Region | 37,707 |
| Naugatuck | 12 | Naugatuck Valley Planning Region | 32,038 |
| Cheshire | 13 | Naugatuck Valley Planning Region | 29,606 |
| New Milford | 14 | Western CT Planning Region | 28,350 |
| Newtown | 15 | Western CT Planning Region | 27,953 |
| Westport | 16 | Western CT Planning Region | 27,636 |
| Ridgefield | 17 | Western CT Planning Region | 24,795 |
| Watertown | 18 | Naugatuck Valley Planning Region | 22,456 |
| Darien | 19 | Western CT Planning Region | 22,218 |
| New Canaan | 20 | Western CT Planning Region | 21,016 |
| Bethel | 21 | Western CT Planning Region | 20,644 |
| Southbury | 22 | Naugatuck Valley Planning Region | 20,393 |
| Ansonia | 23 | Naugatuck Valley Planning Region | 19,089 |
| Monroe | 24 | Greater Bridgeport Planning Region | 18,899 |
| Wilton | 25 | Western CT Planning Region | 18,340 |
| Brookfield | 26 | Western CT Planning Region | 17,391 |
| Seymour | 27 | Naugatuck Valley Planning Region | 17,263 |
| Wolcott | 28 | Naugatuck Valley Planning Region | 16,543 |
| Oxford | 29 | Naugatuck Valley Planning Region | 13,483 |
| New Fairfield | 30 | Western CT Planning Region | 13,391 |
| Derby | 31 | Naugatuck Valley Planning Region | 12,468 |
| Plymouth | 32 | Naugatuck Valley Planning Region | 11,870 |
| Weston | 33 | Western CT Planning Region | 10,326 |
| Woodbury | 34 | Naugatuck Valley Planning Region | 9,982 |
| Prospect | 35 | Naugatuck Valley Planning Region | 9,563 |
| Redding | 36 | Western CT Planning Region | 8,693 |
| Middlebury | 37 | Naugatuck Valley Planning Region | 8,172 |
| Easton | 38 | Greater Bridgeport Planning Region | 7,642 |
| Thomaston | 39 | Naugatuck Valley Planning Region | 7,565 |
| Beacon Falls | 40 | Naugatuck Valley Planning Region | 6,362 |
| Sherman | 41 | Western CT Planning Region | 3,516 |
| Bethlehem | 42 | Naugatuck Valley Planning Region | 3,445 |
| Bridgewater | 43 | Western CT Planning Region | 1,640 |