Zip Area Code

Middlesex County, Connecticut

Middlesex County, Connecticut, has 30 towns and 23 ZIP codes, in area codes 860 (overlay 959) and 203.

Towns in Middlesex County, A to Z

TownZIP codesArea codes
Centerbrook06409860, 959
Chester06412860, 959
Chester Centernearest06412, 06417, 06439860, 959
Clinton06413860, 959
Cobalt06414860, 959
Cromwell06416860, 959
Deep River06417860, 959
Deep River Centernearest06409, 06417, 06442860, 959
Durham06422860, 959
East Haddam06423860, 959
East Hampton06424860, 959
Essex06426860, 959
Fenwicknearest06475860, 959
Haddam06438860, 959
Higganum06441860, 959
Ivoryton06442860, 959
Killingworth06419860, 959
Lake Pocotopaugnearest06414, 06424, 06447860, 959
Madison Centernearest06413, 06443860, 203, 959, 475
Middle Haddam06456860, 959
Middlefield06455860, 959
Middletown06457, 06459860, 959
Moodus06469860, 959
Old Saybrook06475860, 959
Old Saybrook Centernearest06426, 06475860, 959
Portland06480860, 959
Rockfall06481860, 959
Saybrook Manornearest06442, 06475, 06498860, 959
Westbrook06498860, 959
Westbrook Centernearest06442, 06475, 06498860, 959

ZIP codes in Middlesex County

Area codes in Middlesex County

  • 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.

  • Area code 959

    In service since August 30, 2014. Shares its area with 860. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • 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.

Local numbers in area code 860

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