First three digits · Connecticut
ZIP Codes Starting with
33 ZIP codes start with 065, sorted at the Hartford, CT (SCF 060) sectional center (USPS labeling list L005, effective October 1, 2026) in Connecticut: 12 residential ZIP codes across 1 county and 21 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 065 mean?
The first digit, 0, is one of ten national areas (Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, U.S. Virgin Islands and Armed Forces Europe). The first three, 065, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 065 to the Hartford, CT (SCF 060) facility. The last two digits pick the delivery area. By residents, the largest town names among the 065 ZIP codes are New Haven, Hamden, West Haven, East Haven, Woodbridge and Bethany.
The same facility sorts 10 prefixes, 484 ZIP codes in all: 010, 011, 012, 060, 061, 062, 063, 064, 065, 067.
Where are the 065 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 065
| County | ||||||
|---|---|---|---|---|---|---|
| 06501 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06502 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06503 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06504 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06505 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06506 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06507 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06508 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06509 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06510 | New Haven | New Haven County | 4,584 | 17,041 | $59k | $652k |
| 06511 | New Haven | New Haven County | 54,730 | 9,415 | $60k | $353k |
| 06512 | East Haven | New Haven County | 28,830 | 2,732 | $96k | $289k |
| 06513 | New Haven | New Haven County | 38,888 | 5,385 | $49k | $236k |
| 06514 | Hamden | New Haven County | 26,803 | 2,412 | $89k | $271k |
| 06515 | New Haven | New Haven County | 19,006 | 4,170 | $74k | $329k |
| 06516 | West Haven | New Haven County | 55,351 | 5,149 | $74k | $292k |
| 06517 | Hamden | New Haven County | 14,221 | 2,842 | $105k | $339k |
| 06518 | Hamden | New Haven County | 20,126 | 1,220 | $107k | $325k |
| 06519 | New Haven | New Haven County | 15,605 | 8,821 | $50k | $317k |
| 06520 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06521 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06524 | Bethany | New Haven County | 5,288 | 251 | $166k | $418k |
| 06525 | Woodbridge | New Haven County | 9,073 | 482 | $189k | $588k |
| 06530 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06531 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06532 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06533 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06534 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06535 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06536 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06537 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06538 | New Haven | New Haven County | PO Box or unique | – | – | – |
| 06540 | New Haven | New Haven County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.