| City | 2025 Pop. ↓ |
|---|---|
| Bridgeport | 152,570 |
| Bristol | 62,557 |
| Branford | 28,669 |
| Bloomfield | 22,367 |
| Bethel | 22,137 |
| Berlin | 20,750 |
| Brookfield | 18,554 |
| Burlington | 9,865 |
| Brooklyn | 8,785 |
| Beacon Falls | 6,323 |
| Bethany | 5,348 |
| Bolton | 4,930 |
| Barkhamsted | 3,754 |
| Bethlehem | 3,463 |
| Bozrah | 2,437 |
| Bridgewater | 1,682 |
| City | 2025 Pop. ↓ |
|---|---|
| Danbury | 89,341 |
| Darien | 22,866 |
| Derby | 13,065 |
| Durham | 7,237 |
| Deep River | 4,498 |
| City | 2025 Pop. ↓ |
|---|---|
| East Hartford | 51,323 |
| Enfield | 41,282 |
| East Haven | 28,172 |
| East Lyme | 19,059 |
| Ellington | 16,673 |
| East Hampton | 13,192 |
| East Windsor | 11,369 |
| East Haddam | 9,106 |
| Easton | 7,926 |
| Essex | 6,860 |
| East Granby | 5,310 |
| Eastford | 1,723 |
| City | 2025 Pop. ↓ |
|---|---|
| Fairfield | 66,385 |
| Farmington | 28,983 |
| Franklin | 1,908 |
| City | 2025 Pop. ↓ |
|---|---|
| Killingly | 18,229 |
| Killingworth | 6,298 |
| Kent | 3,100 |
| City | 2025 Pop. ↓ |
|---|---|
| Ledyard | 15,682 |
| Litchfield | 8,365 |
| Lebanon | 7,169 |
| Lisbon | 4,266 |
| Lyme | 2,425 |
| City | 2025 Pop. ↓ |
|---|---|
| Meriden | 60,905 |
| Manchester | 60,201 |
| Middletown | 49,026 |
| Mansfield | 28,953 |
| Monroe | 19,517 |
| Montville | 18,024 |
| Madison | 17,793 |
| Middlebury | 8,091 |
| Marlborough | 6,228 |
| Middlefield | 4,281 |
| Morris | 2,308 |
| City | 2025 Pop. ↓ |
|---|---|
| New Haven | 139,624 |
| Norwalk | 94,352 |
| New Britain | 76,603 |
| Norwich | 39,986 |
| Naugatuck | 32,271 |
| Newington | 31,827 |
| New Milford | 28,999 |
| New London | 28,404 |
| Newtown | 28,209 |
| North Haven | 25,271 |
| New Canaan | 21,297 |
| New Fairfield | 13,710 |
| North Branford | 13,602 |
| New Hartford | 6,739 |
| North Stonington | 5,225 |
| North Canaan | 3,229 |
| Norfolk | 1,607 |
| City | 2025 Pop. ↓ |
|---|---|
| Orange | 14,462 |
| Oxford | 13,354 |
| Old Saybrook | 10,756 |
| Old Lyme | 7,733 |
| City | 2025 Pop. ↓ |
|---|---|
| Plainville | 17,912 |
| Plainfield | 15,414 |
| Plymouth | 11,945 |
| Prospect | 9,629 |
| Portland | 9,503 |
| Putnam | 9,484 |
| Preston | 4,880 |
| Pomfret | 4,388 |
| City | 2025 Pop. ↓ |
|---|---|
| Ridgefield | 25,470 |
| Rocky Hill | 21,916 |
| Redding | 8,873 |
| Roxbury | 2,323 |
| City | 2025 Pop. ↓ |
|---|---|
| Trumbull | 38,544 |
| Torrington | 35,750 |
| Tolland | 14,823 |
| Thompson | 9,628 |
| Thomaston | 7,600 |
| City | 2025 Pop. ↓ |
|---|---|
| Union | 812 |
| City | 2025 Pop. ↓ |
|---|---|
| Waterbury | 116,412 |
| West Hartford | 64,462 |
| West Haven | 55,335 |
| Wallingford | 44,520 |
| Windsor | 29,765 |
| Westport | 28,309 |
| Wethersfield | 27,481 |
| Windham | 24,137 |
| Watertown | 22,642 |
| Waterford | 19,986 |
| Wilton | 19,378 |
| Wolcott | 16,625 |
| Windsor Locks | 12,689 |
| Weston | 10,553 |
| Winchester | 10,337 |
| Woodbury | 10,027 |
| Woodbridge | 9,197 |
| Woodstock | 8,512 |
| Westbrook | 6,934 |
| Willington | 5,638 |
| Washington | 3,748 |
| Warren | 1,388 |