| City | 2026 Pop. ↓ |
|---|---|
| Bridgeport | 153,208 |
| Bristol | 62,686 |
| Branford | 28,985 |
| Bloomfield | 22,416 |
| Bethel | 21,847 |
| Berlin | 20,808 |
| Brookfield | 18,945 |
| Burlington | 9,926 |
| Brooklyn | 8,791 |
| Beacon Falls | 6,341 |
| Bethany | 5,333 |
| Bolton | 4,883 |
| Barkhamsted | 3,750 |
| Bethlehem | 3,468 |
| Bozrah | 2,421 |
| Bridgewater | 1,680 |
| City | 2026 Pop. ↓ |
|---|---|
| Danbury | 89,744 |
| Darien | 22,627 |
| Derby | 13,071 |
| Durham | 7,201 |
| Deep River | 4,465 |
| City | 2026 Pop. ↓ |
|---|---|
| East Hartford | 51,022 |
| Enfield | 41,302 |
| East Haven | 27,886 |
| East Lyme | 19,430 |
| Ellington | 16,646 |
| East Hampton | 13,192 |
| East Windsor | 11,391 |
| East Haddam | 9,054 |
| Easton | 7,837 |
| Essex | 6,818 |
| East Granby | 5,605 |
| Eastford | 1,727 |
| City | 2026 Pop. ↓ |
|---|---|
| Fairfield | 66,622 |
| Farmington | 29,207 |
| Franklin | 1,932 |
| City | 2026 Pop. ↓ |
|---|---|
| Killingly | 18,281 |
| Killingworth | 6,291 |
| Kent | 3,118 |
| City | 2026 Pop. ↓ |
|---|---|
| Ledyard | 15,613 |
| Litchfield | 8,412 |
| Lebanon | 7,144 |
| Lisbon | 4,268 |
| Lyme | 2,420 |
| City | 2026 Pop. ↓ |
|---|---|
| Meriden | 60,871 |
| Manchester | 59,888 |
| Middletown | 48,812 |
| Mansfield | 29,101 |
| Monroe | 19,343 |
| Montville | 18,058 |
| Madison | 17,766 |
| Middlebury | 8,165 |
| Marlborough | 6,232 |
| Middlefield | 4,286 |
| Morris | 2,311 |
| City | 2026 Pop. ↓ |
|---|---|
| New Haven | 140,916 |
| Norwalk | 95,205 |
| New Britain | 76,969 |
| Norwich | 40,000 |
| Naugatuck | 32,380 |
| Newington | 31,689 |
| New Milford | 29,098 |
| New London | 28,310 |
| Newtown | 28,288 |
| North Haven | 24,792 |
| New Canaan | 21,262 |
| New Fairfield | 13,683 |
| North Branford | 13,545 |
| New Hartford | 6,775 |
| North Stonington | 5,270 |
| North Canaan | 3,240 |
| Norfolk | 1,606 |
| City | 2026 Pop. ↓ |
|---|---|
| Orange | 14,392 |
| Oxford | 13,374 |
| Old Saybrook | 10,716 |
| Old Lyme | 7,721 |
| City | 2026 Pop. ↓ |
|---|---|
| Plainville | 17,804 |
| Plainfield | 15,432 |
| Plymouth | 11,941 |
| Prospect | 9,675 |
| Portland | 9,445 |
| Putnam | 9,424 |
| Preston | 4,882 |
| Pomfret | 4,400 |
| City | 2026 Pop. ↓ |
|---|---|
| Ridgefield | 25,448 |
| Rocky Hill | 21,815 |
| Redding | 8,859 |
| Roxbury | 2,344 |
| City | 2026 Pop. ↓ |
|---|---|
| Trumbull | 37,999 |
| Torrington | 35,888 |
| Tolland | 14,808 |
| Thompson | 9,647 |
| Thomaston | 7,591 |
| City | 2026 Pop. ↓ |
|---|---|
| Union | 803 |
| City | 2026 Pop. ↓ |
|---|---|
| Waterbury | 116,177 |
| West Hartford | 64,694 |
| West Haven | 55,318 |
| Wallingford | 44,395 |
| Windsor | 30,192 |
| Westport | 28,629 |
| Wethersfield | 27,334 |
| Windham | 24,131 |
| Watertown | 22,574 |
| Waterford | 20,929 |
| Wilton | 19,570 |
| Wolcott | 16,661 |
| Windsor Locks | 12,631 |
| Weston | 10,536 |
| Winchester | 10,374 |
| Woodbury | 10,056 |
| Woodbridge | 9,207 |
| Woodstock | 8,502 |
| Westbrook | 6,921 |
| Willington | 5,611 |
| Washington | 3,743 |
| Warren | 1,398 |