United States › Connecticut › Groton CITY · 2020 ACS
Groton Connecticut · 9,387 residents · 3.08 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2021 ACS 2022 ACS 2023 ACS 2024 ACS
The short version
With 9,387 people, Groton is a city in Connecticut. Owners hold 39% of the housing stock. That trails the Connecticut median by roughly 35%. This skews young, with a median age of 35.7. 78% were living in the same home a year earlier. The average commute runs 19 minutes.
At a glance
Lower income
below the US median
US median: $66,278
Younger
median age 35.7
US median: 38.8
Average education
32% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 31.6 in 2000
US average: 38.8
Population, 1990 – 2024
9K 9K 10K 10K 11K 1990 2000 2010 2020 2024 Groton Age distribution, 2020
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Section 02
Income & economy $51,941
−15%inflation adjusted, since 2000
from $40,515 in 2000
US average: $66,278
from $22,239 in 2000
US average: $35,364
Households earning $100K+
from 30.9% in 2009
US average: 43.9%
from 9.9% in 2000
US average: 12.8%
Workforce by industry, 2020
Public administration 2.2%
Arts, entertainment, food 1%
Education & health services 1%
Professional, scientific, technical 0.9%
Transportation & warehousing 0.6%
Agriculture, forestry, fishing 0.1%
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$223,300
+20%inflation adjusted, since 2000
from $123,500 in 2000
US average: $265,253
$971
+4%inflation adjusted, since 2000
from $620 in 2000
US average: $1,124
from 39.9% in 2000
60.8% rent
1.98 people
−12%since 2009
from 2.25 people in 2009
US average: 2.61
from 4.4 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 74.8%(7,485)
Hispanic / Latino 7.7%(773)
2020
White, non-Hispanic 57.6%(5,408)
Hispanic / Latino 19.3%(1,810)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 23 more ancestry groups with data from 18.8% in 2000
US average: 32.9%
High school or higher
from 89.5% in 2000
US average: 88.5%
from 7.1% in 2000
US average: 12.7%
Section 06
Commute & transportation from 12.2 min in 2000
US average: 26.9
from 75.5% in 2009
US average: 75.1%
from 10.9% in 2009
US average: 8.4%
Section 07
Work & employment from 8.5% in 2011
US average: 5.4%
from 74.4% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 36.4% in 2009
US average: 39.3%
Section 08
People & community from 8.1% in 2009
US average: 13.5%
from 9.2% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
Men 15+
Never married 42.9%(1,742)
Women 15+
Never married 39.9%(1,654)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 9.2% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 30.1%(134)
Gulf War (1990s) 24.9%(111)
Share of the 445 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Groton Head to head
Compare Groton to nearby cities GROTON VS
New London
Income $59,098 +14%
Home value $253,300 +13%
Population 28,003 +176%
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GROTON VS
Conning Towers-Nautilus Park
Income $81,694 +57%
Home value $290,100 +30%
Population 8,460 −17%
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GROTON VS
Westerly
Income $95,207 +83%
Home value $448,800 +101%
Population 18,411 +81%
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GROTON VS
Norwich
Income $65,024 +25%
Home value $242,300 +9%
Population 40,001 +294%
SEE FULL COMPARISON →
Frequently asked
How many people live in Groton, Connecticut? Groton, Connecticut has about 9,387 residents according to the 2020 American Community Survey.
What is the median household income in Groton, Connecticut? The typical household in Groton, Connecticut earns about $51,941 a year. Half of households make more than that, and half make less.
Is Groton, Connecticut expensive? In Groton, Connecticut, the median home is worth about $223,300, and the typical rent is about $971 a month.
How educated are people in Groton, Connecticut? About 32.4% of adults age 25 and over in Groton, Connecticut hold a bachelor's degree or higher.
What is the poverty rate in Groton, Connecticut? About 13.1% of people in Groton, Connecticut live below the federal poverty line.
Has Groton, Connecticut grown since 1990? Yes, Groton, Connecticut has shrunk since 1990. The population has lost about 450 residents, a change of about -5 percent over that period.
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