Colchester ZIP Codes — New London County, CT

There is one unique ZIP code in Colchester, Connecticut and it is 06415. Area code: 860/959.

ZIP codes

55.97

sq mi land

1.09

sq mi water

860/959

area code

Colchester, CT ZIP code map

About Colchester, CT

Colchester is a picturesque town located in the state of Connecticut. It is rich in history and provides a blend of rural charm with suburban convenience. With its community-oriented atmosphere and beautiful landscapes, Colchester is a wonderful place to live and visit.

Location & geography

Colchester is situated in New London County, roughly halfway between Hartford and New London, making it centrally located within Connecticut. The town spans an impressive land area of 55.97 square miles and includes a water area of 1.09 square miles, featuring various ponds and waterways. Nearby cities include East Haddam, 8 miles to the northeast, Middletown, about 11 miles to the southwest, and Lebanon, approximately 13 miles to the northwest.

Community & economy

The character of Colchester is predominantly suburban with a close-knit community feel and a diverse population. The town's industries are varied, but it largely leans towards agriculture, small businesses, and retail, catering to the needs of local residents. Daily life in Colchester often centers around local events, community activities, and the natural beauty of the surrounding landscapes.

Transportation

Colchester is conveniently accessed via several highways, including Route 2, which connects it to larger nearby cities and areas. The nearest named airports include Bradley International Airport, located about 30 miles to the northwest, offering regional and international flights. Public transit options are limited, emphasizing the town's suburban nature.

History

Colchester was originally settled in the early 18th century and was incorporated in 1698, making it one of the older towns in Connecticut. Key industries historically included farming and manufacturing, contributing significantly to the town's development over the years. A notable event in Colchester's history is its role in the American Revolutionary War, where local militias were active in various campaigns.

Did you know?

One surprising fact about Colchester is that it is home to one of the oldest continuously operating fairs in Connecticut, dating back to 1759. Additionally, the town features several historic sites, including the Colchester Historical Society and the historic Meeting House.

ZIP codes for Colchester, CT (1)

ZIP code	City	County	Map
06415	Colchester	New London	View map

Demographics & statistics

16,130

Population

42.9

Median age

$115,339

Median household income

$53,055

Per capita income

$317,400

Median home value

$1,276

Median monthly rent

80.8%

Home ownership

4.4%

Poverty rate

3.1%

Unemployment

5,711

Housing units

45.6%

Bachelor's or higher

Age distribution

Male Female

643

Under 5

626

360

5–9

351

514

10–14

500

491

15–19

478

306

20–24

298

889

25–34

865

1,082

35–44

1,054

1,106

45–54

1,076

696

55–59

677

673

60–64

655

783

65–74

762

475

75–84

462

156

85+

152

← Male

Female →

Age summary

Group	Count	%
Under 18	3,727	23.1%
18 and over	12,403	76.9%
65 and over	2,790	17.3%
Median age	42.9 years

Race & ethnicity

White 90%

Two or more races 3.1%

Hispanic or Latino 2.4%

Black or African American 2.1%

Asian 1.3%

Other race 1.2%

Group	Count	%
White	14,870	90%
Two or more races	516	3.1%
Hispanic or Latino	394	2.4%
Black or African American	345	2.1%
Asian	207	1.3%
Other race	192	1.2%

Household income

Under $10k 2.4%

$10k–$15k 3.2%

$15k–$25k 3.6%

$25k–$35k 4.7%

$35k–$50k 6.4%

$50k–$75k 11.3%

$75k–$100k 11.1%

$100k–$150k 22.3%

$150k–$200k 15.1%

$200k+ 19.9%

Range	% of households
Under $10k	2.4%
$10k–$15k	3.2%
$15k–$25k	3.6%
$25k–$35k	4.7%
$35k–$50k	6.4%
$50k–$75k	11.3%
$75k–$100k	11.1%
$100k–$150k	22.3%
$150k–$200k	15.1%
$200k+	19.9%
Median income	$115,339

Housing

Home values

Under $50k 1.7%

$50k–$100k 0.9%

$100k–$150k 3.0%

$150k–$200k 3.9%

$200k–$300k 35.5%

$300k–$500k 49.9%

$500k–$1M 4.1%

$1M+ 0.9%

Housing overview

Metric	Value
Median home value	$317,400
Median rent / month	$1,276
Owner occupied	80.8%
Renter occupied	19.2%
Vacant	8.6%
Single-family detached	78.6%
Large apartment buildings	0.5%
Mobile homes	1.0%
Median rooms	6.0
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.3%
2010–2019	3.6%
2000–2009	11.3%
1990–1999	17.1%
1980–1989	25.6%
1970–1979	14.1%
1960–1969	7.0%
1950–1959	9.6%
1940–1949	1.5%
1939 or earlier	9.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	8.1%
2 bedrooms	26.5%
3 bedrooms	42.5%
4 bedrooms	19.8%
5+ bedrooms	2.7%

Vehicles per household

Vehicles	% of households
No vehicle	2.8%
1 vehicle	23.7%
2 vehicles	47.1%
3 or more	26.4%

Heating fuel

Fuel type	%
Utility gas	3.1%
Electricity	9.9%
Propane / LP gas	13.0%
Fuel oil	67.4%
Wood	4.0%
Solar	0.6%

Households & families

Household type	Count	%
Married-couple family	3,890	61.4%
Cohabiting couple	314	5.0%
Male householder, no spouse	877	13.8%
Female householder, no spouse	1,253	19.8%
Households with children under 18	1,948	30.8%
Households with seniors (65+)	1,935	30.5%
Average household size	2.51

Marital status

Status	Male	Female
Never married	25.2%	19.7%
Married	62.8%	60.5%
Separated	0.9%	0.7%
Widowed	2.8%	6.8%
Divorced	8.3%	12.2%

Education

Less than 9th grade 1.6%

Some HS, no diploma 2.4%

HS graduate 24.1%

Some college, no degree 17.5%

Associate's degree 8.9%

Bachelor's degree 25.7%

Graduate / professional 19.9%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	45.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	435	12.4%
Kindergarten	112	3.2%
Elementary school	1,330	37.9%
High school	986	28.1%
College / grad school	646	18.4%

Employment

Industry of employment

Education & healthcare 30.4%

Manufacturing 13.3%

Retail trade 8.8%

Finance & real estate 8.4%

Arts, food & hospitality 8.3%

Professional & management 7.6%

Construction 6.1%

Public administration 5.1%

Transportation & utilities 3.5%

Other services 3.3%

Wholesale trade 2.4%

Information 2.2%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	57.4%
Service	13.6%
Sales & office	12.9%
Natural resources & construction	6.8%
Production & transportation	9.3%

Employment type

Type	%
Private sector	73.3%
Government	23.5%
Self-employed	3.1%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	75.5%
Carpool	6.8%
Public transit	0.2%
Walk	0.9%
Other means	1.8%
Avg commute (minutes)	32.2

Poverty

All people 4.4%

Under 18 years 3.5%

18 and over 4.7%

Married-couple families 1.0%

Female-led households 12.2%

Income support

Source	% of households
Social Security	32.1%
Retirement income	30.9%
Supplemental Security	1.5%
Cash public assistance	1.6%
Food stamps / SNAP	4.7%

Health indicators

Condition	%
High blood pressure	28.6%
High cholesterol	31.6%
Heart disease	5.3%
Stroke	2.3%
Asthma	10.5%
Arthritis	22.3%
Kidney disease	2.3%
Pulmonary disease	5.5%
Cancer	6.7%

Behavior / access	%
Binge drinking	17.8%
No physical activity	15.3%
Less than 7 hrs sleep	33.0%
Fair or poor health	9.1%
Poor mental health	13.7%
Poor physical health	7.9%
No health insurance	7.0%
Visited doctor (checkup)	76.5%
Visited dentist	76.1%
Cholesterol screening	92.5%
Teeth loss	8.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,039	8.4%

Disability	%
Any disability	10.7%
Under 18	0.3%
18–64 years	8.7%
65 and over	32.8%

Health insurance coverage

Type	%
Private insurance	83.8%
Public insurance	28.2%
Uninsured under 19	1.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	14,861	92.1%
Spanish	216	1.5%
Other Indo-European	57	0.4%
Asian & Pacific Islander	93	0.6%
Other languages	66	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	15,311	94.9%
Born in same state	15,206	94.3%
Born in different state	10,641	66.0%
Foreign born	105	0.7%
Naturalized citizen	819	5.1%
Not a US citizen	457	55.8%

Ancestry

Ancestry	Count	%
Italian	3,073	19.1%
French	2,565	15.9%
Arab	922	5.7%
German	886	5.5%
English	237	1.5%

Ancestry	Count	%
Norwegian	121	0.8%
Dutch	83	0.5%
Irish	67	0.4%
Polish	61	0.4%

Technology access

Metric	% of households
Computer access	39.3%
Internet access	94.1%

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

Frequently asked questions

What ZIP codes does Colchester, CT have?

Colchester, CT has one ZIP code: 06415. Each ZIP code serves a distinct delivery area within the city and surrounding region.