| City | 2026 Pop. ↓ |
|---|---|
| Bridgeport | 153,542 |
| Bristol | 62,920 |
| Branford | 28,890 |
| Bethel | 22,784 |
| Bloomfield | 22,536 |
| Berlin | 20,854 |
| Brookfield | 18,922 |
| Burlington | 9,926 |
| Brooklyn | 8,862 |
| Beacon Falls | 6,375 |
| Bethany | 5,372 |
| Bolton | 4,965 |
| Barkhamsted | 3,791 |
| Bethlehem | 3,477 |
| Bozrah | 2,448 |
| Bridgewater | 1,693 |
| City | 2026 Pop. ↓ |
|---|---|
| Danbury | 89,990 |
| Darien | 23,204 |
| Derby | 13,216 |
| Durham | 7,244 |
| Deep River | 4,513 |
| City | 2026 Pop. ↓ |
|---|---|
| East Hartford | 51,519 |
| Enfield | 41,424 |
| East Haven | 28,391 |
| East Lyme | 19,114 |
| Ellington | 16,761 |
| East Hampton | 13,275 |
| East Windsor | 11,437 |
| East Haddam | 9,151 |
| Easton | 8,037 |
| Essex | 6,873 |
| East Granby | 5,342 |
| Eastford | 1,740 |
| City | 2026 Pop. ↓ |
|---|---|
| Fairfield | 67,470 |
| Farmington | 29,777 |
| Franklin | 1,916 |
| City | 2026 Pop. ↓ |
|---|---|
| Killingly | 18,365 |
| Killingworth | 6,312 |
| Kent | 3,116 |
| City | 2026 Pop. ↓ |
|---|---|
| Ledyard | 15,789 |
| Litchfield | 8,397 |
| Lebanon | 7,197 |
| Lisbon | 4,283 |
| Lyme | 2,429 |
| City | 2026 Pop. ↓ |
|---|---|
| Meriden | 60,962 |
| Manchester | 60,454 |
| Middletown | 49,436 |
| Mansfield | 29,910 |
| Monroe | 19,765 |
| Montville | 18,135 |
| Madison | 17,898 |
| Middlebury | 8,157 |
| Marlborough | 6,264 |
| Middlefield | 4,288 |
| Morris | 2,326 |
| City | 2026 Pop. ↓ |
|---|---|
| New Haven | 141,686 |
| Norwalk | 95,043 |
| New Britain | 77,335 |
| Norwich | 39,980 |
| Naugatuck | 32,427 |
| Newington | 31,962 |
| New Milford | 29,253 |
| New London | 28,727 |
| Newtown | 28,389 |
| North Haven | 25,698 |
| New Canaan | 21,434 |
| New Fairfield | 13,769 |
| North Branford | 13,653 |
| New Hartford | 6,768 |
| North Stonington | 5,253 |
| North Canaan | 3,238 |
| Norfolk | 1,613 |
| City | 2026 Pop. ↓ |
|---|---|
| Orange | 14,493 |
| Oxford | 13,444 |
| Old Saybrook | 10,823 |
| Old Lyme | 7,745 |
| City | 2026 Pop. ↓ |
|---|---|
| Plainville | 18,067 |
| Plainfield | 15,513 |
| Plymouth | 12,011 |
| Prospect | 9,685 |
| Putnam | 9,561 |
| Portland | 9,528 |
| Preston | 4,905 |
| Pomfret | 4,421 |
| City | 2026 Pop. ↓ |
|---|---|
| Ridgefield | 25,640 |
| Rocky Hill | 22,459 |
| Redding | 8,916 |
| Roxbury | 2,336 |
| City | 2026 Pop. ↓ |
|---|---|
| Trumbull | 39,015 |
| Torrington | 35,828 |
| Tolland | 14,907 |
| Thompson | 9,743 |
| Thomaston | 7,634 |
| City | 2026 Pop. ↓ |
|---|---|
| Union | 819 |
| City | 2026 Pop. ↓ |
|---|---|
| Waterbury | 116,917 |
| West Hartford | 64,740 |
| West Haven | 55,292 |
| Wallingford | 44,651 |
| Windsor | 29,872 |
| Westport | 28,622 |
| Wethersfield | 27,590 |
| Windham | 24,169 |
| Watertown | 22,787 |
| Waterford | 20,062 |
| Wilton | 19,501 |
| Wolcott | 16,739 |
| Windsor Locks | 12,735 |
| Weston | 10,616 |
| Winchester | 10,365 |
| Woodbury | 10,094 |
| Woodbridge | 9,264 |
| Woodstock | 8,590 |
| Westbrook | 6,950 |
| Willington | 5,667 |
| Washington | 3,775 |
| Warren | 1,398 |