ZIP Code 06423 - East Haddam Connecticut

ZIP Code 06423 is located in East Haddam Connecticut. Portions of 06423 are also in Moodus. 06423 is entirely within Middlesex County. Regionally, it is located in the Hartford-New Haven Area.

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ZIP Code 06423 Quick Stats

ZIP Code NameEast Haddam
Primary CountyMiddlesex County
ZIP Code TypeStandard
Population (2022)4,887
Area Code(s)860 / 959
Current Time

ZIP Code 06423 Map

06423 Demographics

06423 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Connecticut based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 06423 is White. The current unemployment level in 06423 is 3.7%.

Population Growth Rate0.00%
Population Density127 People per Square Mile
Total Households1,944
Percentage High Income Households8.7%
Median Household Income (2021)$98,347
Average Adjusted Gross Income (2021)$419,270
Current Unemployment Rate (May 2024)3.7%
Majority Race/EthnictyWhite - 97.61%

06423 Race/Ethnicty Breakdown

Native American00%
Hawaiian/Pac. Islander00%

06423 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College2426.71%
Bachelor Degree87324.22%
High School Diploma94526.22%
No High School Diploma661.83%
GED or Alternate782.16%
1 or More Years of College48513.46%
Associates Degree3208.88%
Masters Degree43912.18%
Professional Degree1193.3%
Doctorate Degree371.03%

06423 Geography

Adjacent ZIP Codes
Cities/Towns in 06423
RegionHartford-New Haven Area
Metropolitan/Micropolitan Stat AreaHartford-East Hartford-Middletown, CT
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area38 Square Miles

06423 Politics

US Congressional Districts in 06423
Connecticut State Senate Districts in 06423
Connecticut State House of Representatives Districts in 06423

06423 Weather and Climate Data

Plant Hardiness ZoneZone 6b: -5F to 0F
Average First Frost DateOctober 11 - 20
Average Last Frost DateMay 1 - 10
Koppen-Geiger Climate ZoneDfb - Humid Continental Mild Summer, Wet All Year
Ecoregion59c - Southern New England Coastal Plains and Hills

06423 Annual Climate Data

Avg Min Temp (°F)18192735455561595240332339
Avg Max Temp (°F)37394758697882817363524160
Avg Precip (In.)4.823.514.624.614.194.13.894.554.184.574.764.4452.24

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