| Place Name | County | Total ZIP Codes | Population () |
|---|
| Abington | Windham County | 1 | |
| Amston | Tolland County | 1 | |
| Andover | Tolland County | 1 | 2,998 |
| Ansonia | New Haven County | 1 | 19,188 |
| Ansonia (town) | New Haven County | 4 | 18,945 |
| Ashford | Windham County | 1 | 4,193 |
|
| Avon | Hartford County | 1 | 18,821 |
| Ball Pond | Fairfield County | 1 | 2,618 |
| Ballouville | Windham County | 1 | |
| Baltic | New London County | 1 | 1,355 |
| Bantam | Litchfield County | 1 | 667 |
|
| Barkhamsted | Litchfield County | 1 | 3,659 |
| Beacon Falls | New Haven County | 1 | 6,027 |
| Berlin | Hartford County | 1 | 20,107 |
| Bethany | New Haven County | 1 | 5,331 |
| Bethel | Fairfield County | 1 | 9,028 |
| Bethel (town) | Fairfield County | 4 | 20,287 |
| Bethlehem | Litchfield County | 1 | 3,408 |
| Bethlehem Village | Litchfield County | 1 | 2,016 |
| Bigelow Corners | Fairfield County | 1 | 782 |
| Bloomfield | Hartford County | 1 | 21,399 |
|
| Blue Hills | Hartford County | 3 | 2,465 |
| Bogus Hill | Fairfield County | 1 | 37 |
| Bolton | Tolland County | 1 | 4,839 |
| Botsford | Fairfield County | 2 | 540 |
| Bozrah | New London County | 1 | 2,389 |
| Branchville | Fairfield County | 3 | 79 |
| Branford | New Haven County | 1 | 28,230 |
| Branford Center | New Haven County | 1 | 6,414 |
| Bridgeport | Fairfield County | 6 | 144,446 |
| Bridgeport (town) | Fairfield County | 11 | 148,529 |
|
| Bridgewater | Litchfield County | 1 | 159 |
| Bridgewater (town) | Litchfield County | 5 | 1,824 |
| Bristol | Hartford County | 1 | 60,502 |
| Bristol (town) | Hartford County | 6 | 60,733 |
| Broad Brook | Hartford County | 1 | 4,316 |
| Brookfield | Fairfield County | 1 | 17,428 |
| Brooklyn | Windham County | 1 | 931 |
| Brooklyn (town) | Windham County | 5 | 8,421 |
| Burlington | Hartford County | 1 | 9,511 |
| Byram | Fairfield County | 2 | 4,597 |
| Canaan | Litchfield County | 1 | 1,177 |
| Canaan (town) | Litchfield County | 2 | 1,223 |
| Candlewood Isle | Fairfield County | 1 | 485 |
| Candlewood Knolls | Fairfield County | 1 | 273 |
| Candlewood Lake Club | Litchfield County | 2 | 346 |
| Candlewood Orchards | Fairfield County | 1 | 590 |
| Candlewood Shores | Fairfield County | 1 | 963 |
| Cannondale | Fairfield County | 1 | 110 |
| Canterbury | Windham County | 1 | 5,053 |
| Canton | Hartford County | 1 | 10,131 |
|
| Canton Center | Hartford County | 1 | |
| Canton Valley | Hartford County | 1 | 1,475 |
| Centerbrook | Middlesex County | 1 | |
| Central Somers | Tolland County | 1 | |
| Central Village | Windham County | 1 | |
| Central Waterford | New London County | 1 | |
| Chaplin | Windham County | 1 | 2,208 |
| Cheshire | New Haven County | 1 | 28,766 |
| Cheshire Village | New Haven County | 1 | 5,207 |
| Chester | Middlesex County | 1 | 3,787 |
| Chester Center | Middlesex County | 2 | 1,684 |
| Chimney Point | Litchfield County | 2 | 28 |
| Clinton | Middlesex County | 1 | 3,417 |
| Clinton (town) | Middlesex County | 4 | 13,283 |
| Cobalt | Middlesex County | 1 | |
| Colchester | New London County | 1 | 4,517 |
| Colchester (town) | New London County | 6 | 15,552 |
| Colebrook | Litchfield County | 1 | 1,422 |
| Coleytown | Fairfield County | 2 | 3,682 |
| Collinsville | Hartford County | 3 | 3,753 |
| Columbia | Tolland County | 1 | 5,269 |
| Compo | Fairfield County | 1 | 3,800 |
| Conning Towers-Nautilus Park | New London County | 2 | 9,913 |
| Cornwall | Litchfield County | 1 | 60 |
| Cornwall (town) | Litchfield County | 8 | 1,379 |
| Cornwall Bridge | Litchfield County | 1 | 176 |
| Cos Cob | Fairfield County | 1 | 6,605 |
| Coventry | Tolland County | 1 | 12,186 |
| Coventry Lake | Tolland County | 1 | 3,163 |
| Cromwell | Middlesex County | 1 | 14,252 |
| Crystal Lake | Tolland County | 5 | 2,421 |
| Danbury | Fairfield County | 2 | 81,057 |
| Danbury (town) | Fairfield County | 7 | 86,197 |
| Daniels Farm | Fairfield County | 3 | 5,656 |
| Danielson | Windham County | 1 | 4,066 |
| Darien | Fairfield County | 1 | 21,485 |
| Darien Downtown | Fairfield County | 1 | 1,223 |
| Dayville | Windham County | 1 | 440 |
| Deep River | Middlesex County | 1 | 4,473 |
| Deep River Center | Middlesex County | 3 | 2,534 |
| Derby | New Haven County | 1 | 12,858 |
| Derby (town) | New Haven County | 4 | 12,387 |
| Dodgingtown | Fairfield County | 1 | 155 |
| Durham | Middlesex County | 1 | 2,820 |
| Durham (town) | Middlesex County | 5 | 7,242 |
| East Berlin | Hartford County | 1 | |
| East Brooklyn | Windham County | 2 | 1,820 |
| East Canaan | Litchfield County | 1 | |
| East Glastonbury | Hartford County | 1 | |
| East Granby | Hartford County | 1 | 5,148 |
| East Haddam | Middlesex County | 1 | 8,973 |
| East Hampton | Middlesex County | 1 | 2,535 |
| East Hampton (town) | Middlesex County | 6 | 12,858 |
| East Hartford | Hartford County | 2 | 51,171 |
| East Hartford (town) | Hartford County | 7 | 50,971 |
| East Hartland | Hartford County | 1 | |
| East Haven | New Haven County | 1 | 29,188 |
| East Haven (town) | New Haven County | 6 | 28,054 |
| East Killingly | Windham County | 1 | |
| East Lyme | New London County | 1 | 18,798 |
| East Village | Fairfield County | 4 | 4,362 |
| East Windsor | Hartford County | 1 | 11,191 |
| East Windsor Hill | Hartford County | 1 | |
| East Woodstock | Windham County | 1 | |
| Eastford | Windham County | 1 | 1,648 |
| Easton | Fairfield County | 1 | 7,602 |
| Ellington | Tolland County | 1 | 16,339 |
| Enfield | Hartford County | 1 | 42,480 |
| Essex | Middlesex County | 1 | 6,725 |
| Essex Village | Middlesex County | 3 | 2,633 |
| Fabyan | Windham County | 1 | |
| Fairfield | Fairfield County | 2 | 61,737 |
| Fairfield University | Fairfield County | 1 | 2,725 |
| Falls Village | Litchfield County | 1 | 480 |
| Farmington | Hartford County | 1 | 26,559 |
| Fenwick | Middlesex County | 1 | 52 |
| Franklin | New London County | 4 | 1,835 |
| Gales Ferry | New London County | 1 | 964 |
| Gaylordsville | Litchfield County | 1 | 660 |
| Georgetown | Fairfield County | 4 | 1,462 |
| Gilman | New London County | 1 | |
| Glastonbury | Hartford County | 1 | 35,061 |
| Glastonbury Center | Hartford County | 3 | 7,544 |
| Glenville | Fairfield County | 1 | 2,210 |
| Goshen | Litchfield County | 1 | 3,139 |
| Granby | Hartford County | 1 | 10,971 |
| Greens Farms | Fairfield County | 2 | 3,203 |
| Greenwich | Fairfield County | 2 | 12,960 |
| Greenwich (town) | Fairfield County | 10 | 63,455 |
| Griswold | New London County | 5 | 11,460 |
| Grosvenor Dale | Windham County | 1 | |
| Groton | New London County | 1 | 9,734 |
| Groton (town) | New London County | 4 | 38,686 |
| Groton Long Point | New London County | 1 | 459 |
| Guilford | New Haven County | 1 | 22,113 |
| Guilford Center | New Haven County | 1 | 2,477 |
| Haddam | Middlesex County | 1 | 8,494 |
| Hadlyme | New London County | 1 | |
| Hamden | New Haven County | 3 | 61,160 |
| Hampton | Windham County | 1 | 1,685 |
| Hanover | New London County | 1 | |
| Hartford | Hartford County | 6 | 124,879 |
| Hartford (town) | Hartford County | 14 | 121,562 |
| Hartland | Hartford County | 6 | 1,971 |
| Harwinton | Litchfield County | 1 | 5,499 |
| Hawleyville | Fairfield County | 1 | 72 |
| Hazardville | Hartford County | 2 | 4,725 |
| Hebron | Tolland County | 1 | 9,122 |
| Heritage Village | New Haven County | 1 | 4,218 |
| Higganum | Middlesex County | 1 | 1,826 |
| Indian Field | Fairfield County | 1 | 608 |
| Inglenook | Fairfield County | 2 | 989 |
| Ivoryton | Middlesex County | 1 | |
| Jewett City | New London County | 1 | 3,466 |
| Kellogg Point | Fairfield County | 1 | 0 |
| Kensington | Hartford County | 3 | 8,862 |
| Kent | Litchfield County | 1 | 2,970 |
| Killingly | Windham County | 8 | 17,681 |
| Killingworth | Middlesex County | 1 | 6,276 |
| Knollcrest | Fairfield County | 1 | 201 |
| Lake Bungee | Windham County | 2 | 478 |
| Lake Chaffee | Windham County | 1 | 433 |
| Lake Pocotopaug | Middlesex County | 1 | 3,043 |
| Lakes East | Fairfield County | 1 | 1,389 |
| Lakes West | Fairfield County | 1 | 1,330 |
| Lakeside | Litchfield County | 1 | |
| Lakeside Woods | Fairfield County | 1 | 367 |
| Lakeville | Litchfield County | 1 | 982 |
| Lebanon | New London County | 1 | 7,140 |
| Ledyard | New London County | 1 | 15,313 |
| Lisbon | New London County | 4 | 4,198 |
| Litchfield | Litchfield County | 1 | 1,496 |
| Litchfield (town) | Litchfield County | 9 | 8,161 |
| Long Hill (Fairfield County) | Fairfield County | 1 | 8,315 |
| Long Hill (New London County) | New London County | 1 | 3,871 |
| Lordship | Fairfield County | 1 | 3,141 |
| Lyme | New London County | 3 | 2,430 |
| Madison | New Haven County | 1 | 17,742 |
| Madison Center | New Haven County | 1 | 2,445 |
| Mamanasco Lake | Fairfield County | 1 | 523 |
| Manchester | Hartford County | 2 | 30,431 |
| Manchester (town) | Hartford County | 6 | 59,452 |
| Mansfield | Tolland County | 8 | 26,431 |
| Mansfield Center | Tolland County | 1 | 1,205 |
| Mansfield Depot | Tolland County | 1 | |
| Marion | Hartford County | 1 | |
| Marlborough | Hartford County | 1 | 6,155 |
| Mashantucket | New London County | 1 | 201 |
| Mechanicsville | Windham County | 2 | 574 |
| Meriden | New Haven County | 2 | 60,674 |
| Meriden (town) | New Haven County | 5 | 60,790 |
| Middle Haddam | Middlesex County | 1 | |
| Middlebury | New Haven County | 1 | 7,617 |
| Middlefield | Middlesex County | 1 | 4,276 |
| Middletown | Middlesex County | 2 | 47,530 |
| Middletown (town) | Middlesex County | 10 | 47,164 |
| Milford | New Haven County | 2 | 51,115 |
| Milford (town) | New Haven County | 5 | 52,308 |
| Mill Plain | Fairfield County | 2 | 1,678 |
| Milldale | Hartford County | 1 | |
| Monroe | Fairfield County | 1 | 18,927 |
| Montville | New London County | 1 | 18,607 |
| Moodus | Middlesex County | 1 | 1,389 |
| Moosup | Windham County | 1 | 2,827 |
| Morris | Litchfield County | 1 | 2,149 |
| Murray | Fairfield County | 1 | 898 |
| Mystic | New London County | 1 | 3,849 |
| Naugatuck | New Haven County | 1 | 31,795 |
| Naugatuck (town) | New Haven County | 5 | 31,586 |
| New Britain | Hartford County | 3 | 73,122 |
| New Britain (town) | Hartford County | 8 | 74,022 |
| New Canaan | Fairfield County | 1 | 7,256 |
| New Canaan (town) | Fairfield County | 5 | 20,574 |
| New Fairfield | Fairfield County | 1 | 13,640 |
| New Hartford | Litchfield County | 1 | 6,685 |
| New Hartford Center | Litchfield County | 2 | 1,321 |
| New Haven | New Haven County | 5 | 129,898 |
| New Haven (town) | New Haven County | 11 | 133,874 |
| New London | New London County | 1 | 27,613 |
| New London (town) | New London County | 3 | 27,585 |
| New Milford | Litchfield County | 1 | 6,302 |
| New Milford (town) | Litchfield County | 9 | 28,074 |
| New Preston | Litchfield County | 3 | 1,092 |
| Newington | Hartford County | 1 | 30,520 |
| Newington (town) | Hartford County | 7 | 30,493 |
| Newtown | Fairfield County | 1 | 1,987 |
| Newtown (town) | Fairfield County | 8 | 27,388 |
| Niantic | New London County | 1 | 2,974 |
| Noank | New London County | 2 | 2,097 |
| Norfolk | Litchfield County | 1 | 694 |
| Norfolk (town) | Litchfield County | 3 | 1,685 |
| Noroton | Fairfield County | 2 | 5,743 |
| Noroton Heights | Fairfield County | 2 | 2,892 |
| North Branford | New Haven County | 1 | 13,643 |
| North Canaan | Litchfield County | 4 | 3,209 |
| North Canton | Hartford County | 1 | |
| North Franklin | New London County | 1 | |
| North Granby | Hartford County | 1 | 1,863 |
| North Grosvenor Dale | Windham County | 1 | 1,653 |
| North Haven | New Haven County | 1 | 24,037 |
| North Haven (town) | New Haven County | 6 | 24,217 |
| North Stonington | New London County | 1 | 5,151 |
| North Westchester | New London County | 1 | |
| North Windham | Windham County | 1 | |
| Northfield | Litchfield County | 1 | |
| Northford | New Haven County | 1 | 6,752 |
| Northwest Harwinton | Litchfield County | 2 | 3,098 |
| Norwalk | Fairfield County | 5 | 85,853 |
| Norwalk (town) | Fairfield County | 9 | 90,821 |
| Norwich | New London County | 1 | 40,322 |
| Norwich (town) | New London County | 9 | 40,020 |
| Oakdale | New London County | 1 | |
| Oakville | Litchfield County | 1 | 9,005 |
| Old Greenwich | Fairfield County | 1 | 6,622 |
| Old Hill | Fairfield County | 2 | 3,190 |
| Old Lyme | New London County | 1 | 7,582 |
| Old Mystic | New London County | 2 | 3,570 |
| Old Saybrook | Middlesex County | 1 | 10,506 |
| Old Saybrook Center | Middlesex County | 1 | 2,319 |
| Oneco | Windham County | 1 | |
| Orange | New Haven County | 1 | 13,919 |
| Orange (town) | New Haven County | 6 | 14,225 |
| Oronoque | Fairfield County | 2 | 3,780 |
| Oxford | New Haven County | 1 | 12,744 |
| Oxoboxo River | New London County | 4 | 3,429 |
| Pawcatuck | New London County | 1 | 5,836 |
| Pemberwick | Fairfield County | 2 | 3,639 |
| Pequabuck | Litchfield County | 1 | |
| Pine Meadow | Litchfield County | 1 | |
| Plainfield | Windham County | 1 | 14,991 |
| Plainfield Village | Windham County | 1 | 2,420 |
| Plainville | Hartford County | 1 | 17,514 |
| Plantsville | Hartford County | 1 | 1,672 |
| Plattsville | Fairfield County | 2 | 986 |
| Pleasant Valley | Litchfield County | 2 | 488 |
| Plymouth | Litchfield County | 1 | 11,705 |
| Pomfret | Windham County | 1 | 4,255 |
| Pomfret Center | Windham County | 1 | |
| Poplar Plains | Fairfield County | 3 | 1,262 |
| Poquonock | Hartford County | 1 | |
| Poquonock Bridge | New London County | 1 | 1,785 |
| Portland | Middlesex County | 1 | 5,911 |
| Portland (town) | Middlesex County | 5 | 9,459 |
| Preston | New London County | 1 | 4,778 |
| Prospect | New Haven County | 1 | 9,361 |
| Putnam | Windham County | 1 | 7,321 |
| Putnam (town) | Windham County | 4 | 9,250 |
| Putnam District | Windham County | 1 | |
| Quaker Hill | New London County | 1 | |
| Quasset Lake | Windham County | 1 | 207 |
| Quinebaug | Windham County | 1 | 1,017 |
| Quinnipiac University | New Haven County | 1 | 4,605 |
| Redding | Fairfield County | 1 | 8,831 |
| Redding Center | Fairfield County | 1 | 195 |
| Redding Ridge | Fairfield County | 1 | |
| Ridgebury | Fairfield County | 2 | 2,219 |
| Ridgefield | Fairfield County | 1 | 7,935 |
| Ridgefield (town) | Fairfield County | 5 | 25,053 |
| Riverside | Fairfield County | 1 | 8,829 |
| Riverton | Litchfield County | 1 | 264 |
| Rock Ridge | Fairfield County | 1 | 686 |
| Rockville | Tolland County | 3 | 7,666 |
| Rocky Hill | Hartford County | 1 | 20,682 |
| Rogers | Windham County | 1 | |
| Route 7 Gateway | Fairfield County | 2 | 882 |
| Roxbury | Litchfield County | 1 | 2,104 |
| Sacred Heart University | Fairfield County | 1 | 1,178 |
| Sail Harbor | Fairfield County | 2 | 109 |
| Salem | New London County | 1 | 4,186 |
| Salisbury | Litchfield County | 1 | 4,048 |
| Salmon Brook | Hartford County | 2 | 2,575 |
| Sandy Hook | Fairfield County | 1 | 9,181 |
| Saugatuck | Fairfield County | 2 | 3,102 |
| Saybrook Manor | Middlesex County | 1 | 1,156 |
| Scotland | Windham County | 1 | 1,639 |
| Seymour | New Haven County | 1 | 16,731 |
| Sharon | Litchfield County | 1 | 646 |
| Sharon (town) | Litchfield County | 6 | 2,679 |
| Shelton | Fairfield County | 1 | 39,641 |
| Shelton (town) | Fairfield County | 5 | 40,944 |
| Sherman | Fairfield County | 1 | 60 |
| Sherman (town) | Fairfield County | 4 | 3,545 |
| Sherwood Manor | Hartford County | 1 | 5,317 |
| Simsbury | Hartford County | 1 | 24,467 |
| Simsbury Center | Hartford County | 2 | 6,068 |
| Somers | Tolland County | 1 | 1,805 |
| Somers (town) | Tolland County | 5 | 10,398 |
| Somersville | Tolland County | 1 | |
| South Britain | New Haven County | 1 | |
| South Coventry | Tolland County | 1 | 1,099 |
| South Glastonbury | Hartford County | 1 | |
| South Kent | Litchfield County | 1 | |
| South Lyme | New London County | 1 | |
| South Willington | Tolland County | 1 | |
| South Wilton | Fairfield County | 1 | 1,372 |
| South Windham | Windham County | 1 | 1,961 |
| South Windsor | Hartford County | 1 | 26,719 |
| South Woodstock | Windham County | 3 | 937 |
| Southbury | New Haven County | 1 | 19,866 |
| Southington | Hartford County | 1 | 43,474 |
| Southport | Fairfield County | 1 | 1,746 |
| Southwood Acres | Hartford County | 1 | 7,920 |
| Sprague | New London County | 2 | 2,955 |
| Stafford | Tolland County | 4 | 11,472 |
| Stafford Springs | Tolland County | 1 | 4,922 |
| Staffordville | Tolland County | 1 | |
| Stamford | Fairfield County | 6 | 122,878 |
| Stamford (town) | Fairfield County | 10 | 134,820 |
| Staples | Fairfield County | 2 | 6,952 |
| Stepney | Fairfield County | 4 | 3,948 |
| Sterling | Windham County | 1 | 3,599 |
| Stevenson | Fairfield County | 1 | |
| Stonington | New London County | 1 | 1,047 |
| Stonington (town) | New London County | 6 | 18,354 |
| Storrs | Tolland County | 2 | 14,031 |
| Stratford | Fairfield County | 2 | 52,360 |
| Stratford Downtown | Fairfield County | 2 | 1,484 |
| Suffield | Hartford County | 1 | 15,863 |
| Suffield Depot | Hartford County | 1 | 1,458 |
| Taconic | Litchfield County | 1 | |
| Taftville | New London County | 1 | |
| Tariffville | Hartford County | 1 | 1,359 |
| Tashua | Fairfield County | 2 | 3,869 |
| Taylor Corners | Fairfield County | 2 | 555 |
| Terramuggus | Hartford County | 1 | 899 |
| Terryville | Litchfield County | 1 | 5,265 |
| Thomaston | Litchfield County | 1 | 1,645 |
| Thomaston (town) | Litchfield County | 8 | 7,497 |
| Thompson | Windham County | 1 | 9,213 |
| Thompsonville | Hartford County | 1 | 8,883 |
| Tokeneke | Fairfield County | 2 | 2,533 |
| Tolland | Tolland County | 1 | 14,546 |
| Topstone | Fairfield County | 1 | 209 |
| Torrington | Litchfield County | 1 | 36,239 |
| Torrington (town) | Litchfield County | 4 | 35,447 |
| Trumbull | Fairfield County | 1 | 36,830 |
| Trumbull Center | Fairfield County | 3 | 9,825 |
| Uncasville | New London County | 1 | |
| Union | Tolland County | 3 | 932 |
| Unionville | Hartford County | 1 | |
| Vernon | Tolland County | 5 | 30,002 |
| Versailles | New London County | 1 | |
| Voluntown | New London County | 1 | 2,554 |
| Wallingford | New Haven County | 1 | 44,428 |
| Wallingford Center | New Haven County | 2 | 18,164 |
| Warren | Litchfield County | 3 | 1,383 |
| Washington | Litchfield County | 1 | 3,619 |
| Waterbury | New Haven County | 6 | 110,074 |
| Waterbury (town) | New Haven County | 12 | 113,783 |
| Waterford | New London County | 1 | 2,798 |
| Waterford (town) | New London County | 6 | 19,558 |
| Watertown | Litchfield County | 1 | 3,641 |
| Watertown (town) | Litchfield County | 6 | 22,110 |
| Wauregan | Windham County | 3 | 1,273 |
| Weatogue | Hartford County | 1 | 2,726 |
| West Cornwall | Litchfield County | 1 | 62 |
| West Granby | Hartford County | 1 | |
| West Hartford | Hartford County | 4 | 63,157 |
| West Hartford (town) | Hartford County | 11 | 64,034 |
| West Hartland | Hartford County | 1 | |
| West Haven | New Haven County | 1 | 55,386 |
| West Haven (town) | New Haven County | 5 | 55,518 |
| West Mountain | Fairfield County | 2 | 536 |
| West Mystic | New London County | 1 | |
| West Simsbury | Hartford County | 1 | 2,567 |
| West Suffield | Hartford County | 1 | |
| Westbrook | Middlesex County | 1 | 6,800 |
| Westbrook Center | Middlesex County | 2 | 2,269 |
| Weston | Fairfield County | 1 | 632 |
| Weston (town) | Fairfield County | 5 | 10,339 |
| Westport | Fairfield County | 1 | 27,168 |
| Westport Village | Fairfield County | 1 | 2,984 |
| Wethersfield | Hartford County | 1 | 26,670 |
| Wethersfield (town) | Hartford County | 6 | 27,162 |
| Willimantic | Windham County | 1 | 17,281 |
| Willington | Tolland County | 1 | 5,586 |
| Wilton | Fairfield County | 1 | 18,486 |
| Wilton Center | Fairfield County | 1 | 846 |
| Winchester | Litchfield County | 5 | 10,335 |
| Winchester Center | Litchfield County | 1 | |
| Windham | Windham County | 1 | 24,480 |
| Windsor | Hartford County | 1 | 29,424 |
| Windsor Locks | Hartford County | 1 | 12,500 |
| Windsor Locks (town) | Hartford County | 4 | 12,559 |
| Winsted | Litchfield County | 1 | 7,563 |
| Witches Woods | Windham County | 2 | 393 |
| Wolcott | New Haven County | 1 | 16,232 |
| Woodbridge | New Haven County | 1 | 9,073 |
| Woodbury | Litchfield County | 1 | 9,762 |
| Woodbury Center | Litchfield County | 1 | 1,290 |
| Woodmont | New Haven County | 1 | 1,711 |
| Woodstock | Windham County | 1 | 8,187 |
| Woodstock Valley | Windham County | 1 | |
| Yantic | New London County | 1 | |