ZIP Code List for Connecticut Cities and Towns
| ZIP Code | City | County | Type | State |
|---|---|---|---|---|
| 6001 | Avon | Hartford county | Standard | CT |
| 6002 | Bloomfield | Hartford county | Standard | CT |
| 6006 | Windsor | Hartford county | Unique | CT |
| 6010 | Bristol | Hartford county | Standard | CT |
| 6011 | Bristol | Hartford county | P.O. Box | CT |
| 6013 | Burlington | Hartford county | Standard | CT |
| 6016 | Broad Brook | Hartford county | Standard | CT |
| 6018 | Canaan | Litchfield county | Standard | CT |
| 6019 | Canton | Hartford county | Standard | CT |
| 6020 | Canton Center | Hartford county | P.O. Box | CT |
| 6021 | Colebrook | Litchfield county | Standard | CT |
| 6022 | Collinsville | Hartford county | P.O. Box | CT |
| 6023 | East Berlin | Hartford county | Standard | CT |
| 6024 | East Canaan | Litchfield county | Standard | CT |
| 6025 | East Glastonbury | Hartford county | P.O. Box | CT |
| 6026 | East Granby | Hartford county | Standard | CT |
| 6027 | East Hartland | Hartford county | Standard | CT |
| 6028 | East Windsor Hill | Hartford county | P.O. Box | CT |
| 6029 | Ellington | Tolland county | Standard | CT |
| 6030 | Farmington | Hartford county | Unique | CT |
| 6031 | Falls Village | Litchfield county | Standard | CT |
| 6032 | Farmington | Hartford county | Standard | CT |
| 6033 | Glastonbury | Hartford county | Standard | CT |
| 6034 | Farmington | Hartford county | P.O. Box | CT |
| 6035 | Granby | Hartford county | Standard | CT |
| 6037 | Berlin | Hartford county | Standard | CT |
| 6039 | Lakeville | Litchfield county | Standard | CT |
| 6040 | Manchester | Hartford county | Standard | CT |
| 6041 | Manchester | Hartford county | Unique | CT |
| 6042 | Manchester | Hartford county | Standard | CT |
| 6043 | Bolton | Tolland county | Standard | CT |
| 6045 | Manchester | Hartford county | P.O. Box | CT |
| 6050 | New Britain | Hartford county | P.O. Box | CT |
| 6051 | New Britain | Hartford county | Standard | CT |
| 6052 | New Britain | Hartford county | Standard | CT |
| 6053 | New Britain | Hartford county | Standard | CT |
| 6057 | New Hartford | Litchfield county | Standard | CT |
| 6058 | Norfolk | Litchfield county | Standard | CT |
| 6059 | North Canton | Hartford county | P.O. Box | CT |
| 6060 | North Granby | Hartford county | Standard | CT |
| 6061 | Pine Meadow | Litchfield county | P.O. Box | CT |
| 6062 | Plainville | Hartford county | Standard | CT |
| 6063 | Barkhamsted | Litchfield county | Standard | CT |
| 6064 | Poquonock | Hartford county | P.O. Box | CT |
| 6065 | Riverton | Litchfield county | Standard | CT |
| 6066 | Vernon Rockville | Tolland county | Standard | CT |
| 6067 | Rocky Hill | Hartford county | Standard | CT |
| 6068 | Salisbury | Litchfield county | Standard | CT |
| 6069 | Sharon | Litchfield county | Standard | CT |
| 6070 | Simsbury | Hartford county | Standard | CT |
| 6071 | Somers | Tolland county | Standard | CT |
| 6072 | Somersville | Tolland county | P.O. Box | CT |
| 6073 | South Glastonbury | Hartford county | Standard | CT |
| 6074 | South Windsor | Hartford county | Standard | CT |
| 6075 | Stafford | Tolland county | P.O. Box | CT |
| 6076 | Stafford Springs | Tolland county | Standard | CT |
| 6077 | Staffordville | Tolland county | P.O. Box | CT |
| 6078 | Suffield | Hartford county | Standard | CT |
| 6079 | Taconic | Litchfield county | P.O. Box | CT |
| 6080 | Suffield | Hartford county | Unique | CT |
| 6081 | Tariffville | Hartford county | Standard | CT |
| 6082 | Enfield | Hartford county | Standard | CT |
| 6083 | Enfield | Hartford county | P.O. Box | CT |
| 6084 | Tolland | Tolland county | Standard | CT |
| 6085 | Unionville | Hartford county | Standard | CT |
| 6088 | East Windsor | Hartford county | Standard | CT |
| 6089 | Weatogue | Hartford county | Standard | CT |
| 6090 | West Granby | Hartford county | Standard | CT |
| 6091 | West Hartland | Hartford county | Standard | CT |
| 6092 | West Simsbury | Hartford county | Standard | CT |
| 6093 | West Suffield | Hartford county | Standard | CT |
| 6094 | Winchester Center | Litchfield county | P.O. Box | CT |
| 6095 | Windsor | Hartford county | Standard | CT |
| 6096 | Windsor Locks | Hartford county | Standard | CT |
| 6098 | Winsted | Litchfield county | Standard | CT |
| 6101 | Hartford | Hartford county | Standard | CT |
| 6102 | Hartford | Hartford county | P.O. Box | CT |
| 6103 | Hartford | Hartford county | Standard | CT |
| 6104 | Hartford | Hartford county | P.O. Box | CT |
| 6105 | Hartford | Hartford county | Standard | CT |
| 6106 | Hartford | Hartford county | Standard | CT |
| 6107 | West Hartford | Hartford county | Standard | CT |
| 6108 | East Hartford | Hartford county | Standard | CT |
| 6109 | Wethersfield | Hartford county | Standard | CT |
| 6110 | West Hartford | Hartford county | Standard | CT |
| 6111 | Newington | Hartford county | Standard | CT |
| 6112 | Hartford | Hartford county | Standard | CT |
| 6114 | Hartford | Hartford county | Standard | CT |
| 6115 | Hartford | Hartford county | P.O. Box | CT |
| 6117 | West Hartford | Hartford county | Standard | CT |
| 6118 | East Hartford | Hartford county | Standard | CT |
| 6119 | West Hartford | Hartford county | Standard | CT |
| 6120 | Hartford | Hartford county | Standard | CT |
| 6123 | Hartford | Hartford county | P.O. Box | CT |
| 6126 | Hartford | Hartford county | P.O. Box | CT |
| 6127 | West Hartford | Hartford county | P.O. Box | CT |
| 6128 | East Hartford | Hartford county | P.O. Box | CT |
| 6129 | Wethersfield | Hartford county | P.O. Box | CT |
| 6131 | Newington | Hartford county | P.O. Box | CT |
| 6132 | Hartford | Hartford county | P.O. Box | CT |
| 6133 | West Hartford | Hartford county | P.O. Box | CT |
| 6134 | Hartford | Hartford county | P.O. Box | CT |
| 6137 | West Hartford | Hartford county | P.O. Box | CT |
| 6138 | East Hartford | Hartford county | P.O. Box | CT |
| 6140 | Hartford | Hartford county | P.O. Box | CT |
| 6141 | Hartford | Hartford county | P.O. Box | CT |
| 6142 | Hartford | Hartford county | P.O. Box | CT |
| 6143 | Hartford | Hartford county | P.O. Box | CT |
| 6144 | Hartford | Hartford county | P.O. Box | CT |
| 6145 | Hartford | Hartford county | P.O. Box | CT |
| 6146 | Hartford | Hartford county | P.O. Box | CT |
| 6147 | Hartford | Hartford county | P.O. Box | CT |
| 6150 | Hartford | Hartford county | Unique | CT |
| 6151 | Hartford | Hartford county | Unique | CT |
| 6152 | Hartford | Hartford county | Standard | CT |
| 6153 | Hartford | Hartford county | Unique | CT |
| 6154 | Hartford | Hartford county | Unique | CT |
| 6155 | Hartford | Hartford county | Unique | CT |
| 6156 | Hartford | Hartford county | Unique | CT |
| 6160 | Hartford | Hartford county | Unique | CT |
| 6161 | Hartford | Hartford county | Unique | CT |
| 6167 | Hartford | Hartford county | Unique | CT |
| 6176 | Hartford | Hartford county | Unique | CT |
| 6180 | Hartford | Hartford county | Unique | CT |
| 6183 | Hartford | Hartford county | Unique | CT |
| 6199 | Hartford | Hartford county | P.O. Box | CT |
| 6226 | Willimantic | Windham county | Standard | CT |
| 6230 | Abington | Windham county | P.O. Box | CT |
| 6231 | Amston | Tolland county | Standard | CT |
| 6232 | Andover | Tolland county | Standard | CT |
| 6233 | Ballouville | Windham county | P.O. Box | CT |
| 6234 | Brooklyn | Windham county | Standard | CT |
| 6235 | Chaplin | Windham county | Standard | CT |
| 6237 | Columbia | Tolland county | Standard | CT |
| 6238 | Coventry | Tolland county | Standard | CT |
| 6239 | Danielson | Windham county | Standard | CT |
| 6241 | Dayville | Windham county | Standard | CT |
| 6242 | Eastford | Windham county | Standard | CT |
| 6243 | East Killingly | Windham county | Standard | CT |
| 6244 | East Woodstock | Windham county | P.O. Box | CT |
| 6245 | Fabyan | Windham county | P.O. Box | CT |
| 6246 | Grosvenor Dale | Windham county | P.O. Box | CT |
| 6247 | Hampton | Windham county | Standard | CT |
| 6248 | Hebron | Tolland county | Standard | CT |
| 6249 | Lebanon | New London county | Standard | CT |
| 6250 | Mansfield Center | Tolland county | Standard | CT |
| 6251 | Mansfield Depot | Tolland county | P.O. Box | CT |
| 6254 | North Franklin | New London county | Standard | CT |
| 6255 | North Grosvenordale | Windham county | Standard | CT |
| 6256 | North Windham | Windham county | Standard | CT |
| 6258 | Pomfret | Windham county | P.O. Box | CT |
| 6259 | Pomfret Center | Windham county | Standard | CT |
| 6260 | Putnam | Windham county | Standard | CT |
| 6262 | Quinebaug | Windham county | Standard | CT |
| 6263 | Rogers | Windham county | P.O. Box | CT |
| 6264 | Scotland | Windham county | Standard | CT |
| 6265 | South Willington | Tolland county | Standard | CT |
| 6266 | South Windham | Windham county | Standard | CT |
| 6267 | South Woodstock | Windham county | P.O. Box | CT |
| 6268 | Storrs Mansfield | Tolland county | Standard | CT |
| 6269 | Storrs Mansfield | Tolland county | Unique | CT |
| 6277 | Thompson | Windham county | Standard | CT |
| 6278 | Ashford | Windham county | Standard | CT |
| 6279 | Willington | Tolland county | Standard | CT |
| 6280 | Windham | Windham county | Standard | CT |
| 6281 | Woodstock | Windham county | Standard | CT |
| 6282 | Woodstock Valley | Windham county | Standard | CT |
| 6320 | New London | New London county | Standard | CT |
| 6330 | Baltic | New London county | Standard | CT |
| 6331 | Canterbury | Windham county | Standard | CT |
| 6332 | Central Village | Windham county | P.O. Box | CT |
| 6333 | East Lyme | New London county | Standard | CT |
| 6334 | Bozrah | New London county | Standard | CT |
| 6335 | Gales Ferry | New London county | Standard | CT |
| 6336 | Gilman | New London county | Standard | CT |
| 6338 | Mashantucket | New London county | P.O. Box | CT |
| 6339 | Ledyard | New London county | Standard | CT |
| 6340 | Groton | New London county | Standard | CT |
| 6349 | Groton | New London county | P.O. Box | CT |
| 6350 | Hanover | New London county | P.O. Box | CT |
| 6351 | Jewett City | New London county | Standard | CT |
| 6353 | Montville | New London county | Standard | CT |
| 6354 | Moosup | Windham county | Standard | CT |
| 6355 | Mystic | New London county | Standard | CT |
| 6357 | Niantic | New London county | Standard | CT |
| 6359 | North Stonington | New London county | Standard | CT |
| 6360 | Norwich | New London county | Standard | CT |
| 6365 | Preston | New London county | Standard | CT |
| 6370 | Oakdale | New London county | Standard | CT |
| 6371 | Old Lyme | New London county | Standard | CT |
| 6372 | Old Mystic | New London county | P.O. Box | CT |
| 6373 | Oneco | Windham county | P.O. Box | CT |
| 6374 | Plainfield | Windham county | Standard | CT |
| 6375 | Quaker Hill | New London county | Standard | CT |
| 6376 | South Lyme | New London county | P.O. Box | CT |
| 6377 | Sterling | Windham county | Standard | CT |
| 6378 | Stonington | New London county | Standard | CT |
| 6379 | Pawcatuck | New London county | Standard | CT |
| 6380 | Taftville | New London county | Standard | CT |
| 6382 | Uncasville | New London county | Standard | CT |
| 6383 | Versailles | New London county | P.O. Box | CT |
| 6384 | Voluntown | New London county | Standard | CT |
| 6385 | Waterford | New London county | Standard | CT |
| 6387 | Wauregan | Windham county | P.O. Box | CT |
| 6388 | West Mystic | New London county | P.O. Box | CT |
| 6389 | Yantic | New London county | Standard | CT |
| 6401 | Ansonia | New Haven county | Standard | CT |
| 6403 | Beacon Falls | New Haven county | Standard | CT |
| 6404 | Botsford | Fairfield county | P.O. Box | CT |
| 6405 | Branford | New Haven county | Standard | CT |
| 6408 | Cheshire | New Haven county | Unique | CT |
| 6409 | Centerbrook | Middlesex county | Standard | CT |
| 6410 | Cheshire | New Haven county | Standard | CT |
| 6411 | Cheshire | New Haven county | Unique | CT |
| 6412 | Chester | Middlesex county | Standard | CT |
| 6413 | Clinton | Middlesex county | Standard | CT |
| 6414 | Cobalt | Middlesex county | P.O. Box | CT |
| 6415 | Colchester | New London county | Standard | CT |
| 6416 | Cromwell | Middlesex county | Standard | CT |
| 6417 | Deep River | Middlesex county | Standard | CT |
| 6418 | Derby | New Haven county | Standard | CT |
| 6419 | Killingworth | Middlesex county | Standard | CT |
| 6420 | Salem | New London county | Standard | CT |
| 6422 | Durham | Middlesex county | Standard | CT |
| 6423 | East Haddam | Middlesex county | Standard | CT |
| 6424 | East Hampton | Middlesex county | Standard | CT |
| 6426 | Essex | Middlesex county | Standard | CT |
| 6437 | Guilford | New Haven county | Standard | CT |
| 6438 | Haddam | Middlesex county | Standard | CT |
| 6439 | Hadlyme | New London county | P.O. Box | CT |
| 6440 | Hawleyville | Fairfield county | P.O. Box | CT |
| 6441 | Higganum | Middlesex county | Standard | CT |
| 6442 | Ivoryton | Middlesex county | Standard | CT |
| 6443 | Madison | New Haven county | Standard | CT |
| 6444 | Marion | Hartford county | P.O. Box | CT |
| 6447 | Marlborough | Hartford county | Standard | CT |
| 6450 | Meriden | New Haven county | Standard | CT |
| 6451 | Meriden | New Haven county | Standard | CT |
| 6455 | Middlefield | Middlesex county | Standard | CT |
| 6456 | Middle Haddam | Middlesex county | P.O. Box | CT |
| 6457 | Middletown | Middlesex county | Standard | CT |
| 6459 | Middletown | Middlesex county | Unique | CT |
| 6460 | Milford | New Haven county | Standard | CT |
| 6461 | Milford | New Haven county | Standard | CT |
| 6467 | Milldale | Hartford county | P.O. Box | CT |
| 6468 | Monroe | Fairfield county | Standard | CT |
| 6469 | Moodus | Middlesex county | Standard | CT |
| 6470 | Newtown | Fairfield county | Standard | CT |
| 6471 | North Branford | New Haven county | Standard | CT |
| 6472 | Northford | New Haven county | Standard | CT |
| 6473 | North Haven | New Haven county | Standard | CT |
| 6474 | North Westchester | New London county | P.O. Box | CT |
| 6475 | Old Saybrook | Middlesex county | Standard | CT |
| 6477 | Orange | New Haven county | Standard | CT |
| 6478 | Oxford | New Haven county | Standard | CT |
| 6479 | Plantsville | Hartford county | Standard | CT |
| 6480 | Portland | Middlesex county | Standard | CT |
| 6481 | Rockfall | Middlesex county | Standard | CT |
| 6482 | Sandy Hook | Fairfield county | Standard | CT |
| 6483 | Seymour | New Haven county | Standard | CT |
| 6484 | Shelton | Fairfield county | Standard | CT |
| 6487 | South Britain | New Haven county | P.O. Box | CT |
| 6488 | Southbury | New Haven county | Standard | CT |
| 6489 | Southington | Hartford county | Standard | CT |
| 6491 | Stevenson | Fairfield county | P.O. Box | CT |
| 6492 | Wallingford | New Haven county | Standard | CT |
| 6493 | Wallingford | New Haven county | Unique | CT |
| 6494 | Wallingford | New Haven county | Unique | CT |
| 6495 | Wallingford | New Haven county | Unique | CT |
| 6498 | Westbrook | Middlesex county | Standard | CT |
| 6501 | New Haven | New Haven county | P.O. Box | CT |
| 6502 | New Haven | New Haven county | P.O. Box | CT |
| 6503 | New Haven | New Haven county | P.O. Box | CT |
| 6504 | New Haven | New Haven county | P.O. Box | CT |
| 6505 | New Haven | New Haven county | P.O. Box | CT |
| 6506 | New Haven | New Haven county | P.O. Box | CT |
| 6507 | New Haven | New Haven county | P.O. Box | CT |
| 6508 | New Haven | New Haven county | P.O. Box | CT |
| 6509 | New Haven | New Haven county | P.O. Box | CT |
| 6510 | New Haven | New Haven county | Standard | CT |
| 6511 | New Haven | New Haven county | Standard | CT |
| 6512 | East Haven | New Haven county | Standard | CT |
| 6513 | New Haven | New Haven county | Standard | CT |
| 6514 | Hamden | New Haven county | Standard | CT |
| 6515 | New Haven | New Haven county | Standard | CT |
| 6516 | West Haven | New Haven county | Standard | CT |
| 6517 | Hamden | New Haven county | Standard | CT |
| 6518 | Hamden | New Haven county | Standard | CT |
| 6519 | New Haven | New Haven county | Standard | CT |
| 6520 | New Haven | New Haven county | P.O. Box | CT |
| 6521 | New Haven | New Haven county | P.O. Box | CT |
| 6524 | Bethany | New Haven county | Standard | CT |
| 6525 | Woodbridge | New Haven county | Standard | CT |
| 6530 | New Haven | New Haven county | P.O. Box | CT |
| 6531 | New Haven | New Haven county | P.O. Box | CT |
| 6532 | New Haven | New Haven county | P.O. Box | CT |
| 6533 | New Haven | New Haven county | P.O. Box | CT |
| 6534 | New Haven | New Haven county | P.O. Box | CT |
| 6535 | New Haven | New Haven county | P.O. Box | CT |
| 6536 | New Haven | New Haven county | P.O. Box | CT |
| 6537 | New Haven | New Haven county | Unique | CT |
| 6538 | New Haven | New Haven county | Unique | CT |
| 6540 | New Haven | New Haven county | Unique | CT |
| 6601 | Bridgeport | Fairfield county | P.O. Box | CT |
| 6602 | Bridgeport | Fairfield county | P.O. Box | CT |
| 6604 | Bridgeport | Fairfield county | Standard | CT |
| 6605 | Bridgeport | Fairfield county | Standard | CT |
| 6606 | Bridgeport | Fairfield county | Standard | CT |
| 6607 | Bridgeport | Fairfield county | Standard | CT |
| 6608 | Bridgeport | Fairfield county | Standard | CT |
| 6610 | Bridgeport | Fairfield county | Standard | CT |
| 6611 | Trumbull | Fairfield county | Standard | CT |
| 6612 | Easton | Fairfield county | Standard | CT |
| 6614 | Stratford | Fairfield county | Standard | CT |
| 6615 | Stratford | Fairfield county | Standard | CT |
| 6673 | Bridgeport | Fairfield county | Unique | CT |
| 6699 | Bridgeport | Fairfield county | Unique | CT |
| 6701 | Waterbury | New Haven county | Unique | CT |
| 6702 | Waterbury | New Haven county | Standard | CT |
| 6703 | Waterbury | New Haven county | P.O. Box | CT |
| 6704 | Waterbury | New Haven county | Standard | CT |
| 6705 | Waterbury | New Haven county | Standard | CT |
| 6706 | Waterbury | New Haven county | Standard | CT |
| 6708 | Waterbury | New Haven county | Standard | CT |
| 6710 | Waterbury | New Haven county | Standard | CT |
| 6712 | Prospect | New Haven county | Standard | CT |
| 6716 | Wolcott | New Haven county | Standard | CT |
| 6720 | Waterbury | New Haven county | P.O. Box | CT |
| 6721 | Waterbury | New Haven county | P.O. Box | CT |
| 6722 | Waterbury | New Haven county | P.O. Box | CT |
| 6723 | Waterbury | New Haven county | P.O. Box | CT |
| 6724 | Waterbury | New Haven county | P.O. Box | CT |
| 6725 | Waterbury | New Haven county | P.O. Box | CT |
| 6726 | Waterbury | New Haven county | P.O. Box | CT |
| 6749 | Waterbury | New Haven county | Unique | CT |
| 6750 | Bantam | Litchfield county | Standard | CT |
| 6751 | Bethlehem | Litchfield county | Standard | CT |
| 6752 | Bridgewater | Litchfield county | Standard | CT |
| 6753 | Cornwall | Litchfield county | P.O. Box | CT |
| 6754 | Cornwall Bridge | Litchfield county | Standard | CT |
| 6755 | Gaylordsville | Litchfield county | Standard | CT |
| 6756 | Goshen | Litchfield county | Standard | CT |
| 6757 | Kent | Litchfield county | Standard | CT |
| 6758 | Lakeside | Litchfield county | Standard | CT |
| 6759 | Litchfield | Litchfield county | Standard | CT |
| 6762 | Middlebury | New Haven county | Standard | CT |
| 6763 | Morris | Litchfield county | Standard | CT |
| 6770 | Naugatuck | New Haven county | Standard | CT |
| 6776 | New Milford | Litchfield county | Standard | CT |
| 6777 | New Preston Marble Dale | Litchfield county | Standard | CT |
| 6778 | Northfield | Litchfield county | Standard | CT |
| 6779 | Oakville | Litchfield county | Standard | CT |
| 6781 | Pequabuck | Litchfield county | P.O. Box | CT |
| 6782 | Plymouth | Litchfield county | Standard | CT |
| 6783 | Roxbury | Litchfield county | Standard | CT |
| 6784 | Sherman | Fairfield county | Standard | CT |
| 6785 | South Kent | Litchfield county | Standard | CT |
| 6786 | Terryville | Litchfield county | Standard | CT |
| 6787 | Thomaston | Litchfield county | Standard | CT |
| 6790 | Torrington | Litchfield county | Standard | CT |
| 6791 | Harwinton | Litchfield county | Standard | CT |
| 6792 | Torrington | Litchfield county | Unique | CT |
| 6793 | Washington | Litchfield county | Standard | CT |
| 6794 | Washington Depot | Litchfield county | Standard | CT |
| 6795 | Watertown | Litchfield county | Standard | CT |
| 6796 | West Cornwall | Litchfield county | Standard | CT |
| 6798 | Woodbury | Litchfield county | Standard | CT |
| 6801 | Bethel | Fairfield county | Standard | CT |
| 6804 | Brookfield | Fairfield county | Standard | CT |
| 6807 | Cos Cob | Fairfield county | Standard | CT |
| 6810 | Danbury | Fairfield county | Standard | CT |
| 6811 | Danbury | Fairfield county | Standard | CT |
| 6812 | New Fairfield | Fairfield county | Standard | CT |
| 6813 | Danbury | Fairfield county | P.O. Box | CT |
| 6814 | Danbury | Fairfield county | Unique | CT |
| 6816 | Danbury | Fairfield county | Unique | CT |
| 6817 | Danbury | Fairfield county | Unique | CT |
| 6820 | Darien | Fairfield county | Standard | CT |
| 6824 | Fairfield | Fairfield county | Standard | CT |
| 6825 | Fairfield | Fairfield county | Standard | CT |
| 6828 | Fairfield | Fairfield county | Standard | CT |
| 6829 | Georgetown | Fairfield county | P.O. Box | CT |
| 6830 | Greenwich | Fairfield county | Standard | CT |
| 6831 | Greenwich | Fairfield county | Standard | CT |
| 6836 | Greenwich | Fairfield county | P.O. Box | CT |
| 6838 | Greens Farms | Fairfield county | P.O. Box | CT |
| 6840 | New Canaan | Fairfield county | Standard | CT |
| 6850 | Norwalk | Fairfield county | Standard | CT |
| 6851 | Norwalk | Fairfield county | Standard | CT |
| 6852 | Norwalk | Fairfield county | P.O. Box | CT |
| 6853 | Norwalk | Fairfield county | Standard | CT |
| 6854 | Norwalk | Fairfield county | Standard | CT |
| 6855 | Norwalk | Fairfield county | Standard | CT |
| 6856 | Norwalk | Fairfield county | P.O. Box | CT |
| 6857 | Norwalk | Fairfield county | Unique | CT |
| 6858 | Norwalk | Fairfield county | Unique | CT |
| 6860 | Norwalk | Fairfield county | Unique | CT |
| 6870 | Old Greenwich | Fairfield county | Standard | CT |
| 6875 | Redding Center | Fairfield county | P.O. Box | CT |
| 6876 | Redding Ridge | Fairfield county | P.O. Box | CT |
| 6877 | Ridgefield | Fairfield county | Standard | CT |
| 6878 | Riverside | Fairfield county | Standard | CT |
| 6879 | Ridgefield | Fairfield county | Unique | CT |
| 6880 | Westport | Fairfield county | Standard | CT |
| 6881 | Westport | Fairfield county | P.O. Box | CT |
| 6883 | Weston | Fairfield county | Standard | CT |
| 6888 | Westport | Fairfield county | Unique | CT |
| 6889 | Westport | Fairfield county | Unique | CT |
| 6890 | Southport | Fairfield county | Standard | CT |
| 6896 | Redding | Fairfield county | Standard | CT |
| 6897 | Wilton | Fairfield county | Standard | CT |
| 6901 | Stamford | Fairfield county | Standard | CT |
| 6902 | Stamford | Fairfield county | Standard | CT |
| 6903 | Stamford | Fairfield county | Standard | CT |
| 6904 | Stamford | Fairfield county | P.O. Box | CT |
| 6905 | Stamford | Fairfield county | Standard | CT |
| 6906 | Stamford | Fairfield county | Standard | CT |
| 6907 | Stamford | Fairfield county | Standard | CT |
| 6910 | Stamford | Fairfield county | Standard | CT |
| 6911 | Stamford | Fairfield county | P.O. Box | CT |
| 6912 | Stamford | Fairfield county | P.O. Box | CT |
| 6913 | Stamford | Fairfield county | Unique | CT |
| 6914 | Stamford | Fairfield county | Unique | CT |
| 6926 | Stamford | Fairfield county | Unique | CT |
| 6927 | Stamford | Fairfield county | Unique | CT |