Stonington ZIP Code List — New London County, CT

There is one unique ZIP code in Stonington, Connecticut and it is 06378. Area code: 860.
1
ZIP codes
20.90
sq mi land
1.76
sq mi water
860
area code
Stonington, CT ZIP code map

About Stonington, CT

Stonington, Connecticut, is a charming coastal town situated in the southeastern part of the state. Known for its rich maritime history and picturesque scenery, Stonington attracts visitors year-round. The town offers a blend of beautiful beaches, historic sites, and a tight-knit community feel.

Location & geography

Stonington is located near the waters of Long Island Sound, providing residents with stunning coastal views and access to various waterfront activities. It is bordered by the town of Groton to the north and is approximately 15 miles northwest of the city of New London. The town encompasses a land area of 20.90 square miles, with an additional 1.76 square miles of water area, contributing to its picturesque landscapes.

Community & economy

The character of Stonington is defined by its strong sense of community and commitment to preservation, with many historic buildings and town events that bring residents together. The local economy is rooted in industries such as tourism, fishing, and small retail businesses, making it a vibrant place for both locals and visitors. Daily life in Stonington is often marked by outdoor activities, with many residents enjoying the town's parks, beaches, and coastal paths.

Transportation

Stonington is accessible via major roadways, including Interstate 95, which connects the town to cities up and down the coast. The nearest airport is Groton-New London Airport, located approximately 10 miles away, which offers limited commercial flights. Public transportation options are available, providing services to neighboring communities.

History

The founding of Stonington dates back to the early 1600s, established primarily as a whaling and shipbuilding center. Over the years, its economy has shifted towards tourism and fishing, showcasing the area's historical charm and natural beauty. One notable event in its history includes the defense against the British during the War of 1812, when the town's residents rallied to protect their homes.

Did you know?

One surprising fact about Stonington is that it is home to a regional historic district that includes a notable collection of Federal-style homes. Additionally, Stonington is recognized for its maritime heritage, having been a prominent whaling and shipbuilding center in the 18th and 19th centuries.

ZIP codes for Stonington, CT (1)
ZIP code City County Map
06378 Stonington New London View map

Demographics & statistics

5,488
Population
57.0
Median age
$113,482
Median household income
$79,594
Per capita income
$522,200
Median home value
$1,546
Median monthly rent
74.4%
Home ownership
2.8%
Poverty rate
4.7%
Unemployment
2,569
Housing units
55.7%
Bachelor's or higher

Age distribution

Male Female
77
Under 5
80
103
5–9
107
75
10–14
78
98
15–19
101
109
20–24
113
234
25–34
243
164
35–44
170
386
45–54
400
246
55–59
254
302
60–64
312
599
65–74
620
244
75–84
253
59
85+
61
← Male
Female →

Age summary

GroupCount%
Under 1868112.4%
18 and over4,80787.6%
65 and over1,83633.5%
Median age57.0 years

Race & ethnicity

White 94.6%
Two or more races 1.9%
Black or African American 1.2%
Hispanic or Latino 1%
Other race 0.6%
Asian 0.6%
GroupCount%
White5,24694.6%
Two or more races1081.9%
Black or African American661.2%
Hispanic or Latino551%
Other race340.6%
Asian320.6%

Household income

Under $10k 3.3%
$10k–$15k 1.3%
$15k–$25k 3.3%
$25k–$35k 4.1%
$35k–$50k 6.1%
$50k–$75k 15.2%
$75k–$100k 9.0%
$100k–$150k 17.3%
$150k–$200k 17.8%
$200k+ 22.7%
Range% of households
Under $10k3.3%
$10k–$15k1.3%
$15k–$25k3.3%
$25k–$35k4.1%
$35k–$50k6.1%
$50k–$75k15.2%
$75k–$100k9.0%
$100k–$150k17.3%
$150k–$200k17.8%
$200k+22.7%
Median income$113,482

Housing

Home values

Under $50k 5.4%
$50k–$100k 1.2%
$100k–$150k 1.8%
$150k–$200k 1.5%
$200k–$300k 10.0%
$300k–$500k 28.1%
$500k–$1M 37.5%
$1M+ 14.6%

Housing overview

MetricValue
Median home value$522,200
Median rent / month$1,546
Owner occupied74.4%
Renter occupied25.6%
Vacant18.2%
Single-family detached75.9%
Large apartment buildings1.8%
Mobile homes3.7%
Median rooms5.9
Avg household size (owned)2.17

Year built

Era%
2020 or later0.0%
2010–20193.7%
2000–20099.8%
1990–19998.7%
1980–198916.7%
1970–19795.5%
1960–19696.6%
1950–19599.4%
1940–19495.0%
1939 or earlier34.6%

Bedrooms

Size% of units
No bedroom (studio)0.1%
1 bedroom13.1%
2 bedrooms21.4%
3 bedrooms38.7%
4 bedrooms21.1%
5+ bedrooms5.6%

Vehicles per household

Vehicles% of households
No vehicle1.4%
1 vehicle34.3%
2 vehicles41.6%
3 or more22.7%

Heating fuel

Fuel type%
Utility gas2.3%
Electricity12.9%
Propane / LP gas20.0%
Fuel oil62.2%
Wood1.7%

Households & families

Household typeCount%
Married-couple family1,44454.3%
Cohabiting couple1515.7%
Male householder, no spouse40915.4%
Female householder, no spouse65624.7%
Households with children under 1838014.3%
Households with seniors (65+)1,25047.0%
Average household size2.06

Marital status

StatusMaleFemale
Never married25.4%19.4%
Married60.9%58.2%
Separated0.4%0.9%
Widowed2.3%6.7%
Divorced11.0%14.8%

Education

Less than 9th grade 0.7%
Some HS, no diploma 0.3%
HS graduate 12.9%
Some college, no degree 19.6%
Associate's degree 10.8%
Bachelor's degree 29.7%
Graduate / professional 26.0%
Metric%
HS diploma or higher99.0%
Bachelor's or higher55.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool9312.8%
Kindergarten506.9%
Elementary school24433.7%
High school18024.8%
College / grad school15821.8%

Employment

Industry of employment

Education & healthcare 25.2%
Professional & management 12.7%
Arts, food & hospitality 12.7%
Manufacturing 12.3%
Retail trade 10.0%
Finance & real estate 9.9%
Construction 3.5%
Public administration 3.4%
Agriculture & mining 3.0%
Other services 3.0%
Wholesale trade 1.6%
Transportation & utilities 1.5%
Information 1.0%

Occupation

Category%
Management, business & arts56.2%
Service12.6%
Sales & office20.7%
Natural resources & construction4.0%
Production & transportation6.5%

Employment type

Type%
Private sector71.5%
Government11.7%
Self-employed16.6%
Unpaid family workers0.2%

Commute

Method%
Drive alone69.2%
Carpool4.5%
Public transit1.6%
Walk1.7%
Other means1.0%
Avg commute (minutes)27.0

Poverty

All people 2.8%
Under 18 years 3.8%
18 and over 2.7%
Married-couple families 0.2%
Female-led households 16.0%

Income support

Source% of households
Social Security40.6%
Retirement income31.2%
Supplemental Security2.9%
Cash public assistance1.4%
Food stamps / SNAP1.4%

Health indicators

Condition%
High blood pressure33.4%
High cholesterol36.4%
Heart disease6.8%
Stroke2.7%
Asthma10.0%
Arthritis26.7%
Kidney disease2.8%
Pulmonary disease6.1%
Cancer8.9%
Behavior / access%
Binge drinking15.3%
No physical activity15.0%
Less than 7 hrs sleep30.7%
Fair or poor health9.3%
Poor mental health11.8%
Poor physical health8.2%
No health insurance6.0%
Visited doctor (checkup)79.7%
Visited dentist78.8%
Cholesterol screening94.7%
Teeth loss7.1%

Veterans & disability

VeteransCount%
Civilian veterans2976.3%
Disability%
Any disability10.3%
Under 181.6%
18–64 years6.1%
65 and over20.0%

Health insurance coverage

Type%
Private insurance81.7%
Public insurance40.1%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only5,33197.1%
Spanish240.5%
Other Indo-European90.2%
Asian & Pacific Islander150.3%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)5,29696.5%
Born in same state5,26095.8%
Born in different state2,00336.5%
Foreign born360.7%
Naturalized citizen1923.5%
Not a US citizen14776.6%

Ancestry

AncestryCount%
Italian1,44826.4%
French1,17521.4%
German2163.9%
Arab1322.4%
Polish1001.8%
AncestryCount%
English480.9%
Irish260.5%
Norwegian190.3%
Dutch60.1%

Technology access

Metric% of households
Computer access48.5%
Internet access96.1%

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

Frequently asked questions
What is the ZIP code for Stonington, CT?
Stonington, CT has one ZIP code: 06378.
What is the main ZIP code for Stonington, CT?
The primary ZIP code for Stonington, CT is 06378. The city uses area code 860 for phone service.
What county is Stonington, CT in?
Stonington is located in New London County, Connecticut.
How many ZIP codes are in Stonington, CT?
Stonington, CT has 1 ZIP code.
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