New Haven County, Connecticut

New Haven County, Connecticut, has 36 towns and 41 ZIP codes, in area codes 203 (overlay 475) and 860.

Towns in New Haven County, A to Z

Town	ZIP codes	Area codes
Ansonia	06401	203, 475
Beacon Falls	06403	203, 475
Bethany	06524	203, 475
Branford	06405	203, 475
Branford Center	nearest06405, 06512, 06513	203, 475
Cheshire	06408, 06410, 06411	203, 475
Derby	06418	203, 475
East Haven	nearest06510, 06512, 06513	203, 475
Guilford	06437	203, 475
Guilford Center	nearest06437	203, 475
Hamden	06514, 06517, 06518	203, 475
Heritage	nearest06488	203, 475
Madison	06443	203, 475
Madison Center	nearest06413, 06443	860, 203, 959, 475
Meriden	06450, 06451	203, 475
Middlebury	06762	203, 475
Milford	06460, 06461	203, 475
Naugatuck	06770	203, 475
New Haven	06501, 06502, 06503, 06504, 06505, 06506 and more	203, 475
North Branford	06471	203, 475
North Haven	06473	203, 475
Northford	06472	203, 475
Orange	06477	203, 475
Oronoque	nearest06461, 06484, 06614	203, 475
Oxford	06478	203, 475
Prospect	06712	203, 475
Quinnipiac University	nearest06473, 06514, 06518	203, 475
Seymour	06483	203, 475
Southbury	06488	203, 475
Wallingford	06492, 06493, 06494, 06495	203, 475
Wallingford Center	nearest06472, 06492	203, 475
Waterbury	06701, 06702, 06703, 06704, 06705, 06706 and more	203, 475
West Haven	06516	203, 475
Wolcott	06716	203, 475
Woodbury Center	nearest06762, 06783, 06798	860, 203, 959, 475
Woodmont	nearest06460, 06461, 06516	203, 475

ZIP codes in New Haven County

06401Ansonia203, 475
06403Beacon Falls203, 475
06405Branford203, 475
06410Cheshire203, 475
06418Derby203, 475
06437Guilford203, 475
06443Madison203, 475
06450Meriden203, 475
06451Meriden203, 475
06460Milford203, 475
06461Milford203, 475
06471North Branford203, 475
06472Northford203, 475
06473North Haven203, 475
06477Orange203, 475
06478Oxford203, 475
06483Seymour203, 475
06488Southbury203, 475
06492Wallingford203, 475
06510New Haven203, 475
06511New Haven203, 475
06512New Haven203, 475
06513New Haven203, 475
06514Hamden203, 475
06515New Haven203, 475
06516West Haven203, 475
06517Hamden203, 475
06518Hamden203, 475
06519New Haven203, 475
06524Bethany203, 475
06525New Haven203, 475
06702Waterbury203, 475
06704Waterbury203, 475
06705Waterbury203, 475
06706Waterbury203, 475
06708Waterbury203, 475
06710Waterbury203, 475
06712Prospect203, 475
06716Wolcott203, 475
06762Middlebury203, 475
06770Naugatuck203, 475

Area codes in New Haven County

Area code 203
In service since 1947. Shares its area with 475. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 475
In service since December 12, 2009. Shares its area with 203. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 860
In service since August 28, 1995. Shares its area with 959. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Local numbers in area code 203

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