06331 ZIP Code — Canterbury, CT

Windham County, Connecticut

ZIP code 06331 is located in Canterbury, Connecticut, within Windham County. It covers approximately 40.77 square miles and serves a population of 5,082 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 860/959.

About ZIP code 06331

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 $277,300. Owner-occupancy is high at 84%, well above the national average.

Median household income is $96,126. The poverty rate of 5% is below the national average. 36% 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 34 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Overall, ZIP code 06331 reflects a community defined by high homeownership and a significant Social Security-dependent population.

5,082

population

40.77

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

06331 ZIP code map

Cities in ZIP code 06331

Below are the cities the US Postal Service accepts for ZIP code 06331. Using any city not on this list may result in mail delivery delays.

City	Status
Canterbury	Acceptable
Canterbury	Preferred

Nearby ZIP codes

06374 Plainfield (4.1 mi) 06264 Scotland (5.8 mi) 06330 Baltic (5.9 mi) 06247 Hampton (6.2 mi) 06234 Brooklyn (6.3 mi) 06354 Moosup (7.3 mi) 06280 Windham (7.8 mi) 06351 Jewett City (8.5 mi) 06377 Sterling (8.7 mi) 06256 North Windham (8.9 mi) 06239 Danielson (9.2 mi) 06266 South Windham (9.6 mi)

Demographics updated 05/2026

Population
Total population	5,082
Population density	125 / sq mi
State FIPS	09
County FIPS	015

Geography
Land area	40.77 sq mi
Water area	0.26 sq mi
Latitude	41.6975
Longitude	-71.9884
Timezone	Eastern (ET)
Area code	860/959

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.2%	36.5%	32.0%
$50k – $100k	41.3%	33.6%	27.7%
$100k – $200k	28.9%	23.1%	27.1%
Over $200k	7.6%	6.9%	13.2%

Demographics & statistics

5,082

Population

125

People per sq mi

48.5

Median age

$96,126

Median household income

$45,635

Per capita income

$277,300

Median home value

$711

Median monthly rent

84.1%

Home ownership

5.3%

Poverty rate

5.1%

Unemployment

2,048

Housing units

23.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

148

5–9

143

133

10–14

128

116

15–19

111

20–24

161

25–34

154

391

35–44

376

443

45–54

426

145

55–59

140

409

60–64

392

278

65–74

268

161

75–84

155

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	818	16.1%
18 and over	4,264	83.9%
65 and over	981	19.3%
Median age	48.5 years

Race & ethnicity

White 78.4%

Two or more races 10.4%

Hispanic or Latino 8.4%

Black or African American 1.4%

Asian 1.3%

Group	Count	%
White	4,353	78.4%
Two or more races	579	10.4%
Hispanic or Latino	469	8.4%
Black or African American	77	1.4%
Asian	73	1.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.2%	36.5%	32.0%
$50k – $100k	41.3%	33.6%	27.7%
$100k – $200k	28.9%	23.1%	27.1%
Over $200k	7.6%	6.9%	13.2%

Under $10k 1.8%

$10k–$15k 1.0%

$15k–$25k 6.4%

$25k–$35k 3.5%

$35k–$50k 4.6%

$50k–$75k 15.3%

$75k–$100k 24.3%

$100k–$150k 23.8%

$150k–$200k 10.6%

$200k+ 8.7%

Range	% of households
Under $10k	1.8%
$10k–$15k	1.0%
$15k–$25k	6.4%
$25k–$35k	3.5%
$35k–$50k	4.6%
$50k–$75k	15.3%
$75k–$100k	24.3%
$100k–$150k	23.8%
$150k–$200k	10.6%
$200k+	8.7%
Median income	$96,126

Housing

Home values

Under $50k 3.8%

$50k–$100k 0.3%

$100k–$150k 1.7%

$150k–$200k 11.6%

$200k–$300k 49.7%

$300k–$500k 29.5%

$500k–$1M 2.9%

$1M+ 0.4%

Housing overview

Metric	Value
Median home value	$277,300
Median rent / month	$711
Owner occupied	84.1%
Renter occupied	15.9%
Vacant	4.3%
Single-family detached	90.1%
Large apartment buildings	2.8%
Mobile homes	1.0%
Median rooms	6.2
Avg household size (owned)	2.35

Year built

Era	%
2020 or later	0.0%
2010–2019	7.5%
2000–2009	3.9%
1990–1999	15.9%
1980–1989	19.2%
1970–1979	19.5%
1960–1969	9.4%
1950–1959	4.5%
1940–1949	3.6%
1939 or earlier	16.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	7.6%
2 bedrooms	14.8%
3 bedrooms	51.8%
4 bedrooms	22.5%
5+ bedrooms	2.9%

Vehicles per household

Vehicles	% of households
No vehicle	2.9%
1 vehicle	25.0%
2 vehicles	29.6%
3 or more	42.4%

Heating fuel

Fuel type	%
Electricity	7.4%
Propane / LP gas	10.6%
Fuel oil	64.2%
Wood	16.5%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	1,301	56.3%
Cohabiting couple	147	6.4%
Male householder, no spouse	402	17.4%
Female householder, no spouse	461	19.9%
Households with children under 18	539	23.3%
Households with seniors (65+)	782	33.8%
Average household size	2.20

Marital status

Status	Male	Female
Never married	24.8%	15.5%
Married	62.3%	56.6%
Separated	0.0%	2.2%
Widowed	3.2%	13.9%
Divorced	9.7%	11.9%

Education

Less than 9th grade 3.1%

Some HS, no diploma 6.9%

HS graduate 28.2%

Some college, no degree 29.9%

Associate's degree 7.9%

Bachelor's degree 12.1%

Graduate / professional 11.8%

Metric	%
HS diploma or higher	89.9%
Bachelor's or higher	23.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	31	3.2%
Kindergarten	34	3.5%
Elementary school	488	50.6%
High school	229	23.7%
College / grad school	183	19.0%

Employment

Industry of employment

Education & healthcare 28.6%

Manufacturing 12.2%

Arts, food & hospitality 11.1%

Retail trade 10.0%

Professional & management 8.3%

Construction 6.0%

Transportation & utilities 5.4%

Public administration 4.7%

Agriculture & mining 4.2%

Other services 4.2%

Finance & real estate 3.8%

Wholesale trade 1.3%

Information 0.2%

Occupation

Category	%
Management, business & arts	44.9%
Service	15.9%
Sales & office	17.5%
Natural resources & construction	8.0%
Production & transportation	13.7%

Employment type

Type	%
Private sector	74.1%
Government	15.7%
Self-employed	9.9%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	86.0%
Carpool	1.1%
Public transit	0.0%
Walk	1.6%
Work from home	10.3%
Other means	1.1%
Avg commute (minutes)	33.6

Poverty

All people 5.3%

Under 18 years 5.7%

18 and over 5.2%

Married-couple families 0.8%

Female-led households 38.0%

Income support

Source	% of households
Social Security	36.2%
Retirement income	41.5%
Supplemental Security	2.0%
Cash public assistance	4.5%
Food stamps / SNAP	8.4%

Health indicators

Condition	%
Obesity	32.5%
High blood pressure	29.3%
High cholesterol	34.4%
Diabetes	8.4%
Heart disease	5.2%
Stroke	2.4%
Asthma	10.4%
Arthritis	24.1%
Kidney disease	2.3%
Pulmonary disease	5.9%
Cancer	6.6%

Behavior / access	%
Smoking	16.3%
Binge drinking	19.0%
No physical activity	19.5%
Less than 7 hrs sleep	33.7%
Depression	23.0%
Fair or poor health	10.4%
Poor mental health	14.3%
Poor physical health	8.8%
No health insurance	8.0%
Visited doctor (checkup)	76.5%
Visited dentist	73.7%
Cholesterol screening	91.9%
Teeth loss	9.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	446	10.5%

Disability	%
Any disability	16.2%
Under 18	8.9%
18–64 years	15.7%
65 and over	23.9%

Health insurance coverage

Type	%
Private insurance	79.6%
Public insurance	32.2%
No insurance	4.4%
Uninsured under 19	1.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,988	98.2%
Spanish	55	1.1%
Other Indo-European	33	0.7%
Asian & Pacific Islander	0	0.0%
Other languages	22	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,901	96.4%
Born in same state	4,595	90.4%
Born in different state	3,453	67.9%
Foreign born	306	6.0%
Naturalized citizen	181	3.6%
Not a US citizen	60	33.1%

Ancestry

Ancestry	Count	%
Italian	772	15.2%
French	714	14%
German	576	11.3%

Ancestry	Count	%
Arab	97	1.9%
Norwegian	44	0.9%
English	26	0.5%

Technology access

Metric	% of households
Computer access	45.5%
Internet access	83.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 06331

What city is ZIP code 06331 in?

ZIP code 06331 is primarily assigned to Canterbury, Connecticut.

What county is ZIP code 06331 in?

ZIP code 06331 falls within Windham County, Connecticut.

Is ZIP code 06331 mostly owner-occupied?

84% of occupied units in ZIP code 06331 are owner-occupied, well above the national average.

Does ZIP code 06331 have a large veteran population?

11% of civilians in ZIP code 06331 are veterans, above the national average of ~7%.

Does ZIP code 06331 have a large retiree population?

36% of households in ZIP code 06331 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 06331?

ZIP code 06331 has an estimated population of 5,082 residents, with a density of 125 people per square mile.

What timezone is ZIP code 06331 in?

ZIP code 06331 observes the EST timezone.