Most populated ZIP codes in Connecticut
The ZIP codes in Connecticut with the most residents.
| Rank | ZIP code | City | County | Population | Population |
|---|
| 1 | 06902 | Stamford, CT | Fairfield County | 73,392 | 73,392 |
| 2 | 06010 | Bristol, CT | Hartford County | 61,684 | 61,684 |
| 3 | 06810 | Danbury, CT | Fairfield County | 55,833 | 55,833 |
| 4 | 06516 | West Haven, CT | New Haven County | 55,351 | 55,351 |
| 5 | 06511 | New Haven, CT | New Haven County | 54,730 | 54,730 |
| 6 | 06606 | Bridgeport, CT | Fairfield County | 49,308 | 49,308 |
| 7 | 06457 | Middletown, CT | Middlesex County | 46,720 | 46,720 |
| 8 | 06492 | Wallingford, CT | New Haven County | 44,498 | 44,498 |
| 9 | 06484 | Shelton, CT | Fairfield County | 41,889 | 41,889 |
| 10 | 06082 | Enfield, CT | Hartford County | 41,090 | 41,090 |
| 11 | 06513 | New Haven, CT | New Haven County | 38,888 | 38,888 |
| 12 | 06460 | Milford, CT | New Haven County | 37,649 | 37,649 |
| 13 | 06611 | Trumbull, CT | Fairfield County | 37,281 | 37,281 |
| 14 | 06360 | Norwich, CT | New London County | 37,216 | 37,216 |
| 15 | 06053 | New Britain, CT | Hartford County | 36,774 | 36,774 |
| 16 | 06824 | Fairfield, CT | Fairfield County | 36,716 | 36,716 |
| 17 | 06106 | Hartford, CT | Hartford County | 36,322 | 36,322 |
| 18 | 06040 | Manchester, CT | Hartford County | 35,813 | 35,813 |
| 19 | 06450 | Meriden, CT | New Haven County | 35,694 | 35,694 |
| 20 | 06614 | Stratford, CT | Fairfield County | 35,654 | 35,654 |
| 21 | 06790 | Torrington, CT | Litchfield County | 35,566 | 35,566 |
| 22 | 06489 | Southington, CT | Hartford County | 32,706 | 32,706 |
| 23 | 06854 | Norwalk, CT | Fairfield County | 32,118 | 32,118 |
| 24 | 06770 | Naugatuck, CT | New Haven County | 31,823 | 31,823 |
| 25 | 06604 | Bridgeport, CT | Fairfield County | 31,771 | 31,771 |
| 26 | 06704 | Waterbury, CT | New Haven County | 31,713 | 31,713 |
| 27 | 06811 | Danbury, CT | Fairfield County | 31,228 | 31,228 |
| 28 | 06111 | Newington, CT | Hartford County | 30,896 | 30,896 |
| 29 | 06066 | Vernon Rockville, CT | Tolland County | 30,577 | 30,577 |
| 30 | 06033 | Glastonbury, CT | Hartford County | 29,921 | 29,921 |
| 31 | 06340 | Groton, CT | New London County | 29,863 | 29,863 |
| 32 | 06095 | Windsor, CT | Hartford County | 29,670 | 29,670 |
| 33 | 06708 | Waterbury, CT | New Haven County | 29,594 | 29,594 |
| 34 | 06051 | New Britain, CT | Hartford County | 29,548 | 29,548 |
| 35 | 06410 | Cheshire, CT | New Haven County | 28,904 | 28,904 |
| 36 | 06512 | New Haven, CT | New Haven County | 28,830 | 28,830 |
| 37 | 06405 | Branford, CT | New Haven County | 28,217 | 28,217 |
| 38 | 06851 | Norwalk, CT | Fairfield County | 27,865 | 27,865 |
| 39 | 06320 | New London, CT | New London County | 27,703 | 27,703 |
| 40 | 06880 | Westport, CT | Fairfield County | 27,583 | 27,583 |
| 41 | 06118 | East Hartford, CT | Hartford County | 27,419 | 27,419 |
| 42 | 06109 | Wethersfield, CT | Hartford County | 27,250 | 27,250 |
| 43 | 06776 | New Milford, CT | Litchfield County | 27,010 | 27,010 |
| 44 | 06074 | South Windsor, CT | Hartford County | 26,907 | 26,907 |
| 45 | 06514 | Hamden, CT | New Haven County | 26,803 | 26,803 |
| 46 | 06114 | Hartford, CT | Hartford County | 26,458 | 26,458 |
| 47 | 06605 | Bridgeport, CT | Fairfield County | 25,929 | 25,929 |
| 48 | 06705 | Waterbury, CT | New Haven County | 25,266 | 25,266 |
| 49 | 06877 | Ridgefield, CT | Fairfield County | 25,110 | 25,110 |
| 50 | 06830 | Greenwich, CT | Fairfield County | 24,880 | 24,880 |
Source: American Community Survey 2020–2024 5-year estimates. Only ZIP codes with a delivery area are ranked. Methodology
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