ZIP Code Tabulation Area

06340

Groton, CT · ACS 2020–2024

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Latest estimates

At a glance

U.S. Census Bureau American Community Survey 5-year estimates.

Total population
29,863
Median household income
$81,792
People below poverty
12.7%
Median home value
$294,700

Income

The median income of households in 06340 was $81,792. An estimated 5.8% of households had income below $10,000 a year and 11.6% had income of $200,000 or more.

Household Income in 06340 in 2020-2024

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Percent
Less than $10,000 5.8
$10,000 to $14,999 2.3
$15,000 to $24,999 5.9
$25,000 to $34,999 6.7
$35,000 to $49,999 9.8
$50,000 to $74,999 14.1
$75,000 to $99,999 19.5
$100,000 to $149,999 15.8
$150,000 to $199,999 8.6
$200,000 or more 11.6

Median Earnings for Full-Time Year-Round Workers by Sex in 06340 in 2020-2024

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Dollars
Male 75145
Female 54013

An estimated 78.7% of households received earnings. An estimated 27.2% of households received Social Security and an estimated 25.7 % of households received retirement income other than Social Security. The average income from Social Security was $25,784. These income sources are not mutually exclusive; that is, some households received income from more than one source.

Proportion of Households with Various Income Sources in 06340 in 2020-2024

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Percent
Earnings 78.7
Social Security 27.2
Retirement income 25.7
Supplemental Security Income (SSI) 4.4
Cash public assistance income 3.9

Poverty and Participation in Government Programs

In 2020-2024, 12.7 % of people were in poverty. An estimated 18.7% of children under 18 were below the poverty level, compared with 9.2% of people 65 years old and over. An estimated 11.8% of people 18 to 64 years were below the poverty level.

Poverty Rates in 06340 in 2020-2024

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Percent
People in poverty 12.7
Children under 18 years below poverty 18.7
People 65 years old and over below poverty 9.2
People 18 to 64 years below poverty 11.8

In 2020-2024, 13.1 % of households received SNAP (the Supplemental Nutrition Assistance Program). An estimated 40.7% of households that received SNAP had children under 18, and 26.2% of households that received SNAP had one or more people 60 years and over. An estimated 38.6% of all households receiving SNAP were families with a female householder and no spouse present.


Among the civilian noninstitutionalized population in 06340 in 2020-2024, 95.8% had health insurance coverage and 4.2% did not have health insurance coverage. Private coverage was 71.5% and public coverage was 38.6%, respectively. The percentage of children under the age of 19 with no health insurance coverage was 1.5%.


In 2020-2024, 06340 had a total population of 29,863 - 13,792 (46.2%) females and 16,071 (53.8%) males. The median age was 33.7 years. An estimated 18.7% of the population was under 18 years, 41.2% was 19 to 44 years, 20.7% was 45 to 64 years, and 16.7 % was 65 years and older.

Population by Age and Sex for 06340 in 2020-2024

Male Female
Under 5 1301 804
5 to 9 647 640
10 to 14 728 473
15 to 19 1178 631
20 to 24 1763 1546
25 to 29 1894 1248
30 to 34 1613 1085
35 to 39 911 876
40 to 44 639 704
45 to 49 505 697
50 to 54 750 718
55 to 59 915 792
60 to 64 949 871
65 to 69 718 919
70 to 74 404 606
75 to 79 368 407
80 to 84 312 309
85 and over 476 466

Hispanic Origin and Race

For people reporting one race alone, 69.8% were White; 6.2% were Black or African American; 5.4% were American Indian and Alaska Native; 7.5% were Asian; 3.5% were Native Hawaiian and Other Pacific Islander, and 0% were Some Other Race. An estimated 13.4% reported Two or More Races. An estimated 14.2% of the people in 06340 were Hispanic or Latino. An estimated 65.6% of the people in 06340 were White alone, non-Hispanic. People of Hispanic origin may be of any race.


Households and Families

In 2020-2024, there were 12,879 households in 06340. The average household size was 2.19 people.

Married-couple households made up 37.9% of the households in 06340 while cohabiting couple households made up 7.8% of households. Female householders with no spouse or partner present were 27% of all households, while 27.2% of households had male householders with no spouse or partner present. Some households had one person, as 19.5% of households were male householders living alone, and 14.5% were female householders living alone, for a total of 34% of all households.

In 06340, 26.5% of all households had one or more people under the age of 18; 27.4% of all households had one or more people 65 years and over.

Types of Households in 06340 in 2020-2024

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Percent
Married-couple households 37.9
Cohabiting Couples 7.8
Male Householder
No spouse/partner present
27.2
Female Householder
No spouse/partner present
27

Marital Status

Among persons 15 and older, 43.5% of males and 43% of females were currently married.

Population 15 years and over Percent
Males
Percent
Females
Never married 43 34.5
Now married, except separated 43.5 43
Separated 1 1.2
Widowed 3.3 5.1
Divorced 9.3 16.3

Grandparents and Grandchildren

In 06340, 382 grandparents lived with their grandchildren under 18 years old. Of those grandparents, 33.5% were responsible for the basic needs of their grandchildren.


Nativity and Foreign-Born

In 2020-2024, an estimated 91.3% of the people living in 06340 were U.S. natives. 43.9% of the 06340 population were living in the state where they were born.

Approximately 8.7% of 06340 residents in 2020-2024 were foreign-born. 62.8% of foreign-born were naturalized U.S. citizens and an estimated 73.3 % entered the country before the year 2010.

Foreign-born residents of 06340 come from different parts of the world. The bar graph below displays the percentage of foreign-born from each world region of birth in 2020-2024 for 06340.

Region of Birth for the Foreign-Born Population in 06340 in 2020-2024

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Percent
Latin America 29.4
Asia 52.2
Europe 14.8
Africa 2.9
Northern America 0.7
Oceania 0.1

Language

Among people at least five years old living in 06340 in 2020-2024, 12.3 % spoke a language other than English at home. Spanish was spoken by 5.8% of people at least five years old; 4.5% reported that they did not speak English "very well."

Percentage of the Population 5 years and over who Speak a Language other than English in 06340 in 2020-2024

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Percent
Spanish 5.8
Other Indo-European languages 2.4
Asian and Pacific Islander languages 3.9
Other languages 0.2

Geographic Mobility

In 2020-2024, 77.1 % of the people at least one year old living in 06340 were living in the same house one year earlier.

Geographic Mobility of Residents of 06340 in 2020-2024

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Percent
Same house 77.1
Different house, same county 8.6
Different county, same state 2.8
Different state 10.8
Abroad 0.6

Education

In 2020-2024, 94.1 % of people 25 years and over had at least graduated from high school and 39.2% had a bachelor's degree or higher. An estimated 5.8% did not complete high school.

The total school enrollment in 06340 was 5,547 in 2020-2024. Nursery school enrollment was 686 and kindergarten through 12th grade enrollment was 3,513. College or graduate school enrollment was 1,348.

Educational Attainment of People in 06340 in 2020-2024

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Percent
Less than high school diploma 5.8
High school diploma or equivalency 26.7
Some college, no degree 20.3
Associate's degree 7.9
Bachelor's degree 23.2
Graduate or professional degree 16

Disability

In 06340, among the civilian noninstitutionalized population in 2020-2024, 15.7 % reported a disability. The likelihood of having a disability varied by age - from 5.8% of people under 18 years old, to 13.5% of people 18 to 64 years old, and to 34.8% of those 65 and over.


Employment Status and Type of Employer

In 06340, 53.7 % of the population 16 and over were employed; 32.2% were not currently in the labor force.

An estimated 80.1% of the people employed were private wage and salary workers; 16.2% were federal, state, or local government workers; and 3.7 % were self-employed in their own (not incorporated) business.

Class of worker Number Percent
Private wage and salary workers 10,682 80.1
Federal, state, or local government workers 2,155 16.2
Self-employed workers in own not incorporated business 494 3.7

Industries

In 2020-2024, the civilian employed population 16 years and older in 06340 worked in the following industries:

Percent by Industry in 06340 in 2020-2024

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Percent
Agriculture, forestry, fishing and hunting, and mining 0.4
Construction 3.6
Manufacturing 20
Wholesale trade 1.6
Retail trade 8.4
Transportation and warehousing, and utilities 4.3
Information 1.6
Finance and insurance, and real estate and rental and leasing 4.3
Professional, scientific, and management, and administrative and waste management services 12.1
Educational services, and health care and social assistance 25.2
Arts, entertainment, and recreation, and accommodation, and food services 9.3
Other Services, except public administration 4.1
Public administration 5.1

Occupations

Occupations for the Civilian Employed Population 16 Years and over in 06340 in 2020-2024

Civilian employed population 16 years and over Number Percent
Management, business, sciences, and arts occupations 7,174 53.8
Service occupations 1,895 14.2
Sales and office occupations 2,183 16.4
Natural resources, construction, and maintenance occupations 827 6.2
Production, transportation, and material moving occupations 1,253 9.4

Commuting to Work

An estimated 68.5% of 06340 workers drove to work alone in 2020-2024, and 7.8% carpooled. Among those who commuted to work, it took them on average 18.2 minutes to get to work.

Percent of Workers 16 and over Commuting by Mode in 06340 in 2020-2024

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Percent
Car, truck, van -- drove alone 68.5
Car, truck, van -- carpooled 7.8
Public transportation (excluding taxicab) 0.4
Walked 7.6
Other means 2.4
Worked from home 13.3

In 2020-2024, 06340 had a total of 14,359 housing units. Of these housing units, 51.2% were single-family houses either not attached to any other structure or attached to one or more structures (commonly referred to as "townhouses" or "row houses"). 46.2% of the housing units were located in multi-unit structures, or those buildings that contained two or more apartments. 2.6% were mobile homes, while any remaining housing units were classified as "other," which included boats, recreational vehicles, vans, etc.

Types of Housing Units in 06340 in 2020-2024

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Percent
Single-family houses 51.2
Apartments in multi-unit structures 46.2
Mobile homes 2.6
Boat, RV, van, etc 0

4% of the housing inventory was comprised of houses built since 2010, while 13.2% of the houses were first built in 1939 or earlier. The median number of rooms in all housing units in 06340 was 5 rooms, and of these housing units 42.7% had three or more bedrooms.


In 2020-2024, 06340 had 12,879 housing units that were occupied or had people living in them, while the remaining 1,480 were vacant. Of the occupied housing units, the percentage of these houses occupied by owners (also known as the homeownership rate) was 44.5% while renters occupied 55.5%. The average household size of owner-occupied houses was 2.19 and in renter-occupied houses it was 2.19.

9.7% of householders of these occupied houses had moved into their house since 2021, while 7% moved into their house in 1989 or earlier. Households without a vehicle available for personal use comprised 8.2% and another 11.6% had three or more vehicles available for use.

The following chart provides the primary fuel used to heat houses in 06340:

House Heating Fuel Used in 06340 in 2020-2024

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Percent
Gas 18.3
Electricity 38.3
Fuel oil, kerosene, etc 41.7
All other fuels 0.9
No fuel used 0.8

In 2020-2024, the median property value for owner-occupied houses in 06340 was $294,700.

Of the owner-occupied households, 59 % had a mortgage. 41% owned their houses "free and clear," that is without a primary mortgage or loan on the house. The median monthly housing costs for owners with a mortgage was $1,969 and for owners without a mortgage it was $876.

For renter-occupied houses, the median gross rent for 06340 was $1,599. Gross rent includes the monthly contract rent and any monthly payments made for electricity, gas, water and sewer, and any other fuels to heat the house.