New Haven County, CT Zip Codes
42 zip codes across 23 cities in New Haven County, CT
About New Haven County
New Haven County, Connecticut (CT) contains 42 unique zip codes spanning 23 cities and communities. Each zip code covers a different area within the county, with varying demographics, income levels, and housing markets.
Browse the complete list below to find detailed population, income, home values, cost of living, and climate data for any zip code in New Haven County.
Cities in New Haven County
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All Zip Codes in New Haven County, CT
| Zip Code | City |
|---|---|
| 06401 | Ansonia |
| 06403 | Beacon Falls |
| 06405 | Branford |
| 06410 | Cheshire |
| 06418 | Derby |
| 06437 | Guilford |
| 06443 | Guilford |
| 06450 | Meriden |
| 06451 | Wallingford |
| 06460 | Milford |
| 06471 | North Branford |
| 06472 | Northford |
| 06473 | North Haven |
| 06477 | Milford |
| 06478 | Oxford |
| 06483 | Seymour |
| 06488 | Southbury |
| 06492 | Wallingford |
| 06504 | New Haven |
| 06510 | New Haven |
| 06511 | New Haven |
| 06512 | New Haven |
| 06513 | New Haven |
| 06514 | Hamden |
| 06515 | New Haven |
| 06516 | West Haven |
| 06517 | New Haven |
| 06518 | Hamden |
| 06519 | New Haven |
| 06524 | New Haven |
| 06525 | New Haven |
| 065HH | Zcta 065hh |
| 06702 | Waterbury |
| 06704 | Waterbury |
| 06705 | Waterbury |
| 06706 | Waterbury |
| 06708 | Waterbury |
| 06710 | Waterbury |
| 06712 | Prospect |
| 06716 | Waterbury |
| 06762 | Middlebury |
| 06770 | Naugatuck |
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Frequently Asked Questions
How many zip codes are in New Haven County, CT?
New Haven County, CT has 42 zip codes across 23 cities.
What cities are in New Haven County?
Cities in New Haven County include Ansonia, Beacon Falls, Branford, Cheshire, Derby, Guilford, Hamden, Meriden, Middlebury, Milford, Naugatuck, New Haven, North Branford, North Haven, Northford, Oxford, Prospect, Seymour, Southbury, Wallingford, Waterbury, West Haven, Zcta 065hh.
What state is New Haven County in?
New Haven County is located in Connecticut (CT).
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.