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Connecticut ZIP Codes
Middlesex County
Haddam, CT
06438
06438 ZIP Code — Haddam, CT
Middlesex County, Connecticut
ZIP code 06438 is located in
Haddam ,
Connecticut ,
within Middlesex County .
It covers approximately 13.95 square miles and serves a population of
3,079 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 860 .
About ZIP code 06438
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $373,100. Owner-occupancy is high at 79%, well above the national average.
Median household income is $140,000. The poverty rate of 4% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 30 minutes is near the national average.
Educational attainment is high — 59% of residents hold a bachelor's degree or higher, well above the national average of 33%.
Overall, ZIP code 06438 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.
06438 ZIP code map
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Cities in ZIP code 06438
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,079
Population density
221 / sq mi
State FIPS
09
County FIPS
007
Geography
Land area
13.95 sq mi
Water area
0.94 sq mi
Latitude
41.4605
Longitude
-72.5044
Timezone
Eastern (ET)
Area code
860
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.8%
28.8%
32.0%
$50k – $100k
22.3%
28.9%
27.7%
$100k – $200k
36.0%
30.3%
27.1%
Over $200k
23.0%
12.1%
13.2%
Demographics & statistics
$140,000
Median household income
$373,100
Median home value
$1,732
Median monthly rent
58.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 626 20.3%
18 and over 2,453 79.7%
65 and over 587 19.1%
Median age 43.9 years
Race & ethnicity
Group Count %
White 2,836 87.8%
Two or more races 186 5.8%
Hispanic or Latino 151 4.7%
Asian 40 1.2%
Other race 17 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.8%
28.8%
32.0%
$50k – $100k
22.3%
28.9%
27.7%
$100k – $200k
36.0%
30.3%
27.1%
Over $200k
23.0%
12.1%
13.2%
Range % of households
$10k–$15k 3.9%
$15k–$25k 2.5%
$25k–$35k 2.5%
$35k–$50k 4.4%
$50k–$75k 3.5%
$75k–$100k 11.4%
$100k–$150k 24.0%
$150k–$200k 21.5%
$200k+ 26.3%
Median income $140,000
Housing
Housing overview
Metric Value
Median home value $373,100
Median rent / month $1,732
Owner occupied 78.7%
Renter occupied 21.3%
Vacant 11.2%
Single-family detached 92.9%
Large apartment buildings 3.0%
Mobile homes 0.0%
Median rooms 6.5
Avg household size (owned) 2.97
Year built
Era %
2020 or later 0.0%
2010–2019 1.2%
2000–2009 7.2%
1990–1999 9.8%
1980–1989 14.5%
1970–1979 22.9%
1960–1969 8.0%
1950–1959 12.9%
1940–1949 9.7%
1939 or earlier 13.9%
Bedrooms
Size % of units
No bedroom (studio) 3.0%
1 bedroom 6.9%
2 bedrooms 12.6%
3 bedrooms 55.3%
4 bedrooms 18.5%
5+ bedrooms 3.8%
Vehicles per household
Vehicles % of households
No vehicle 2.6%
1 vehicle 14.1%
2 vehicles 39.1%
3 or more 44.2%
Heating fuel
Fuel type %
Utility gas 1.0%
Electricity 6.4%
Propane / LP gas 4.7%
Fuel oil 75.0%
Wood 13.0%
Households & families
Household type Count %
Married-couple family 800 77.1%
Cohabiting couple 58 5.6%
Male householder, no spouse 110 10.6%
Female householder, no spouse 70 6.7%
Households with children under 18 356 34.3%
Households with seniors (65+) 345 33.2%
Average household size 2.86
Marital status
Status Male Female
Never married 23.9% 18.4%
Married 63.6% 68.5%
Separated 0.0% 0.0%
Widowed 4.4% 5.4%
Divorced 8.1% 7.7%
Education
Some college, no degree
12.4%
Graduate / professional
27.1%
Metric %
HS diploma or higher 96.0%
Bachelor's or higher 58.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 82 10.6%
Kindergarten 68 8.8%
Elementary school 246 31.8%
High school 212 27.4%
College / grad school 166 21.4%
Employment
Industry of employment
Education & healthcare
30.1%
Professional & management
19.8%
Finance & real estate
11.4%
Arts, food & hospitality
7.7%
Transportation & utilities
4.0%
Public administration
3.3%
Occupation
Category %
Management, business & arts 58.1%
Service 17.2%
Sales & office 12.1%
Natural resources & construction 5.9%
Production & transportation 6.6%
Employment type
Type %
Private sector 81.5%
Government 14.8%
Self-employed 3.6%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 74.1%
Carpool 8.3%
Public transit 1.9%
Walk 1.1%
Work from home 14.7%
Other means 0.0%
Avg commute (minutes) 30.2
Poverty
Married-couple families
0.0%
Female-led households
31.0%
Income support
Source % of households
Social Security 31.5%
Retirement income 29.3%
Supplemental Security 2.7%
Cash public assistance 2.4%
Food stamps / SNAP 5.2%
Health indicators
Condition %
Obesity 29.1%
High blood pressure 30.3%
High cholesterol 33.1%
Diabetes 8.2%
Heart disease 5.6%
Stroke 2.4%
Asthma 9.9%
Arthritis 24.9%
Kidney disease 2.4%
Pulmonary disease 5.6%
Cancer 7.4%
Behavior / access %
Smoking 14.2%
Binge drinking 17.6%
No physical activity 15.2%
Less than 7 hrs sleep 29.8%
Depression 20.4%
Fair or poor health 9.2%
Poor mental health 13.0%
Poor physical health 8.0%
No health insurance 6.6%
Visited doctor (checkup) 77.7%
Visited dentist 75.9%
Cholesterol screening 93.5%
Teeth loss 7.9%
Veterans & disability
Veterans Count %
Civilian veterans 216 8.8%
Disability %
Any disability 12.4%
Under 18 0.0%
18–64 years 7.9%
65 and over 44.3%
Health insurance coverage
Type %
Private insurance 83.3%
Public insurance 24.4%
No insurance 0.7%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,979 96.8%
Spanish 62 2.1%
Other Indo-European 29 1.0%
Asian & Pacific Islander 17 0.6%
Other languages 16 0.5%
Place of birth & citizenship
Origin Count %
Native born (US) 2,998 97.4%
Born in same state 2,992 97.2%
Born in different state 2,092 67.9%
Foreign born 6 0.2%
Naturalized citizen 81 2.6%
Not a US citizen 24 29.6%
Ancestry
Ancestry Count %
Italian 604 19.6%
French 341 11.1%
Arab 134 4.4%
English 74 2.4%
Ancestry Count %
Norwegian 74 2.4%
Polish 41 1.3%
Dutch 8 0.3%
Irish 6 0.2%
Technology access
Metric % of households
Computer access 33.7%
Internet access 93.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 06438
What city is ZIP code 06438 in?
ZIP code 06438 is primarily assigned to Haddam, Connecticut.
What county is ZIP code 06438 in?
ZIP code 06438 falls within Middlesex County, Connecticut.
How educated is the population of ZIP code 06438?
59% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the median household income in ZIP code 06438?
The median household income in ZIP code 06438 is $140,000, above the national median of ~$75,000.
What is the typical home value in ZIP code 06438?
The median home value in ZIP code 06438 is $373,100.
What is the population of ZIP code 06438?
ZIP code 06438 has an estimated population of 3,079 residents, with a density of 221 people per square mile.
What timezone is ZIP code 06438 in?
ZIP code 06438 observes the EST timezone.
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