| City | 2025 Pop. ↓ |
|---|---|
| Bridgeport | 148,235 |
| Bristol | 62,183 |
| Branford | 27,915 |
| Bloomfield | 22,586 |
| Berlin | 20,901 |
| Bethel | 20,644 |
| Brookfield | 17,391 |
| Burlington | 9,802 |
| Brooklyn | 8,830 |
| Beacon Falls | 6,362 |
| Bethany | 5,259 |
| Bolton | 4,836 |
| Barkhamsted | 3,701 |
| Bethlehem | 3,445 |
| Bozrah | 2,410 |
| Bridgewater | 1,640 |
| City | 2025 Pop. ↓ |
|---|---|
| Danbury | 86,385 |
| Darien | 22,218 |
| Derby | 12,468 |
| Durham | 7,200 |
| Deep River | 4,474 |
| City | 2025 Pop. ↓ |
|---|---|
| East Hartford | 50,588 |
| Enfield | 39,912 |
| East Haven | 27,313 |
| East Lyme | 19,303 |
| Ellington | 17,038 |
| East Hampton | 13,049 |
| East Windsor | 11,210 |
| East Haddam | 9,051 |
| Easton | 7,642 |
| Essex | 6,806 |
| East Granby | 5,208 |
| Eastford | 1,717 |
| City | 2025 Pop. ↓ |
|---|---|
| Fairfield | 64,139 |
| Farmington | 27,002 |
| Franklin | 1,921 |
| City | 2025 Pop. ↓ |
|---|---|
| Killingly | 18,177 |
| Killingworth | 6,284 |
| Kent | 3,082 |
| City | 2025 Pop. ↓ |
|---|---|
| Ledyard | 15,539 |
| Litchfield | 8,317 |
| Lebanon | 7,088 |
| Lisbon | 4,220 |
| Lyme | 2,435 |
| City | 2025 Pop. ↓ |
|---|---|
| Meriden | 59,773 |
| Manchester | 59,426 |
| Middletown | 48,663 |
| Mansfield | 25,385 |
| Monroe | 18,899 |
| Montville | 17,752 |
| Madison | 17,390 |
| Middlebury | 8,172 |
| Marlborough | 6,130 |
| Middlefield | 4,263 |
| Morris | 2,274 |
| City | 2025 Pop. ↓ |
|---|---|
| New Haven | 139,027 |
| Norwalk | 93,502 |
| New Britain | 74,963 |
| Norwich | 39,783 |
| Newington | 33,067 |
| Naugatuck | 32,038 |
| New Milford | 28,350 |
| New London | 28,121 |
| Newtown | 27,953 |
| North Haven | 24,749 |
| New Canaan | 21,016 |
| New Fairfield | 13,391 |
| North Branford | 13,321 |
| New Hartford | 6,725 |
| North Stonington | 5,179 |
| North Canaan | 3,196 |
| Norfolk | 1,594 |
| City | 2025 Pop. ↓ |
|---|---|
| Orange | 14,474 |
| Oxford | 13,483 |
| Old Saybrook | 10,575 |
| Old Lyme | 7,714 |
| City | 2025 Pop. ↓ |
|---|---|
| Plainville | 17,587 |
| Plainfield | 15,303 |
| Plymouth | 11,870 |
| Prospect | 9,563 |
| Portland | 9,420 |
| Putnam | 9,354 |
| Preston | 4,833 |
| Pomfret | 4,335 |
| City | 2025 Pop. ↓ |
|---|---|
| Ridgefield | 24,795 |
| Rocky Hill | 20,720 |
| Redding | 8,693 |
| Roxbury | 2,329 |
| City | 2025 Pop. ↓ |
|---|---|
| Trumbull | 37,707 |
| Torrington | 35,673 |
| Tolland | 14,642 |
| Thompson | 9,529 |
| Thomaston | 7,565 |
| City | 2025 Pop. ↓ |
|---|---|
| Union | 805 |
| City | 2025 Pop. ↓ |
|---|---|
| Waterbury | 115,730 |
| West Hartford | 64,129 |
| West Haven | 54,403 |
| Wallingford | 43,449 |
| Windsor | 29,352 |
| Westport | 27,636 |
| Wethersfield | 27,098 |
| Windham | 23,715 |
| Watertown | 22,456 |
| Waterford | 20,357 |
| Wilton | 18,340 |
| Wolcott | 16,543 |
| Windsor Locks | 12,509 |
| Weston | 10,326 |
| Winchester | 10,222 |
| Woodbury | 9,982 |
| Woodbridge | 8,963 |
| Woodstock | 8,424 |
| Westbrook | 6,911 |
| Willington | 5,578 |
| Washington | 3,733 |
| Warren | 1,379 |