Middlesex County Connecticut Zip Codes

Cities in

Below are a list of the cities located in Middlesex County, CT. There are 23 total unique zip codes in Middlesex County, Connecticut. The time zone for Middlesex County is the Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for is 09007.

The population in Middlesex County, CT is currently 164,759. That is a decrease of -0.61% vs the population of 165,676 in 2010.

Zip Codes for Middlesex County, CT (23)

Zip Code
City County
Zip Code Map
06409 Centerbrook Middlesex
06412 Chester Middlesex
06413 Clinton Middlesex
06414 Cobalt Middlesex
06416 Cromwell Middlesex
06417 Deep River Middlesex
06419 Killingworth Middlesex
06422 Durham Middlesex
06423 East Haddam Middlesex
06424 East Hampton Middlesex
06426 Essex Middlesex
06438 Haddam Middlesex
06441 Higganum Middlesex
06442 Ivoryton Middlesex
06455 Middlefield Middlesex
06456 Middle Haddam Middlesex
06457 Middletown Middlesex
06459 Middletown Middlesex
06469 Moodus Middlesex
06475 Old Saybrook Middlesex
06480 Portland Middlesex
06481 Rockfall Middlesex
06498 Westbrook Middlesex

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