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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of East Haddam, CT

East Haddam, CT Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 06423StandardMiddlesex5,097860 / 959

Timezone(s):Eastern (GMT -05:00)
Population:5,097 (More Details)
Male Population:2,585
Female Population:2,512
Median Age:44
ZIP Codes:1
Area Codes:2
Total Area:439 square miles (county)
Land Area:369 square miles (county)
Water Area:70 square miles (county)

East Haddam, CT Demographic Information *

There is no Census data for the city of EAST HADDAM, CT. We have pulled information for the ZIP Code 06423 instead.
Total population5,097
Male population2,585
Female population2,512
Median age (years)44.1
White Population4,928
Black Population45
Indian Population16
Asian Population34
Hawaiian Population1
Hispanic Population109
Median age (Male)43.7
Median age (Female)44.4
Total households1,974
Family households (families)1,456
Average household size2.57
Average family size2.98
Total housing units2,365
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],