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CITY

Groton

Connecticut · 10,160 residents (2025 est.) · 3.083 sq mi
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#164Fastest shrinkingof 6,642-9.6%
The short version

Groton has roughly average household income, with a median household income of $79,577. Population has declined 5% since 2000. Median home value has more than doubled since 2000, reaching $306,600.

At a glance
Average income
near the US median
US median: $82,259
Mid-age
median age 39.0
US median: 38.9
Average education
39% hold a bachelor's degree
US average: 36%
Less affordable
home values up 36%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
9,490
−5%since 2000
from 10,010 in 2000
1990 – 2025
Population density
3,078 / sq mi
−5%since 2000
from 3,247 / sq mi in 2000
US average: 281
Median age
39.0
+23%since 2000
from 31.6 in 2000
US average: 38.9

PEP 2025 EST:10,160 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
9K9K10K10K11K1990201020202024Groton
20249K
1990201020202024
Section 02

Income & economy

Median household income
$79,577
+8%inflation adjusted, since 2000
from $40,515 in 2000
US average: $82,259
1990 – 2024
Per capita income
$45,619
+105%since 2000
from $22,239 in 2000
US average: $44,673
Households earning $100K+
54.6%
+23.7 ptssince 2009
from 30.9% in 2009
US average: 53.3%
Poverty rate
18.6%
+8.7 ptssince 2000
from 9.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.428
+1%since 2010
from 0.426 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade24.4%
US avg: 9.9%
Information7.7%
US avg: 10.8%
Finance & insurance4.6%
US avg: 5.9%
Other services3.1%
US avg: 6.7%
Wholesale trade3%
US avg: 6.9%
Professional, scientific, technical2.4%
US avg: 5.1%
Education & health services2.2%
US avg: 0.9%
Public administration2.1%
US avg: 4.8%
Arts, entertainment, food1.7%
US avg: 1.9%
Transportation & warehousing1.3%
US avg: 2.2%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$306,600
+36%inflation adjusted, since 2000
from $123,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,250
+11%inflation adjusted, since 2000
from $620 in 2000
US average: $1,442
Owner-occupied
45.4%
+5.5 ptssince 2000
from 39.9% in 2000
54.6% rent
Vacancy rate
9.2%
−2.5 ptssince 2009
from 11.7% in 2009
US average: 10.0%
Owner cost-burdened
18.3%
−10.0 ptssince 2009
from 28.3% in 2009
US average: 22.9%
Renter cost-burdened
45.5%
+9.2 ptssince 2009
from 36.3% in 2009
US average: 47.4%
Afford Score
3.9
+26%since 2000
from 3.0 in 2000
1990 – 2024
Gentrification Score
56
RELATED:See current rent listings in Groton on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic74.8%(7,485)
Black9.4%(939)
Hispanic / Latino7.7%(773)
Asian3.5%(353)
Other0%
Diversity Score46%(4,606)
2024
White, non-Hispanic67%(6,362)
Black8%(755)
Hispanic / Latino12.4%(1,175)
Asian6%(569)
Other6.6%(629)
Diversity Score65.1%(6,180)
Diversity Score
65
+42%since 2000
from 46 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
38.8%
+20.0 ptssince 2000
from 18.8% in 2000
US average: 35.6%
High school or higher
94.1%
+4.6 ptssince 2000
from 89.5% in 2000
US average: 89.6%
Graduate degree
12.7%
+5.7 ptssince 2000
from 7.1% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
17.5 min
+43%since 2000
from 12.2 min in 2000
US average: 26.5
Drive alone to work
75.1%
−0.4 ptssince 2009
from 75.5% in 2009
US average: 68.9%
Carpooled to work
7.1%
−5.4 ptssince 2009
from 12.5% in 2009
US average: 8.5%
Public transit
0.1%
−2.7 ptssince 2009
from 2.8% in 2009
US average: 3.2%
Worked from home
4.8%
+2.9 ptssince 2009
from 1.9% in 2009
US average: 15.0%
Walked to work
11.5%
+4.9 ptssince 2009
from 6.6% in 2009
US average: 2.4%
Biked to work
0.7%
+0.1 ptssince 2009
from 0.6% in 2009
US average: 0.4%
No vehicle available
10.8%
−0.1 ptssince 2009
from 10.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
6.0%
−2.4 ptssince 2011
from 8.5% in 2011
US average: 5.2%
Labor force participation
67.1%
−7.3 ptssince 2011
from 74.4% in 2011
US average: 63.5%
Self-employed
14.8%
+2.2 ptssince 2009
from 12.7% in 2009
US average: 13.1%
Management & professional
52.0%
−17.3 ptssince 2009
from 69.3% in 2009
US average: 42.5%
Section 08

People & community

Male
51.1%
+5.3 ptssince 2009
from 45.8% in 2009
Female
48.9%
−5.3 ptssince 2009
from 54.2% in 2009
Foreign born
8.3%
+0.3 ptssince 2009
from 8.1% in 2009
US average: 14.1%
Veterans
7.7%
−37.0 ptssince 2009
from 44.8% in 2009
US average: 6.2%
With a disability
19.6%
+7.9 ptssince 2012
from 11.7% in 2012
US average: 13.3%
Uninsured
6.1%
−84.7 ptssince 2013
from 90.8% in 2013
US average: 8.4%
Broadband at home
88.5%
+3.0 ptssince 2017
from 85.5% in 2017
US average: 91.0%
English only at home
91.5%
+8.2 ptssince 2016
from 83.4% in 2016
US average: 77.7%
Spanish at home
3.5%
−5.3 ptssince 2016
from 8.8% in 2016
US average: 13.6%
Drill deeper

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Frequently asked

How many people live in Groton, Connecticut?

Groton, Connecticut has about 9,490 residents according to the 2024 American Community Survey.

What is the median household income in Groton, Connecticut?

The typical household in Groton, Connecticut earns about $79,577 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 $306,600, and the typical rent is about $1,250 a month.

How educated are people in Groton, Connecticut?

About 38.8% 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 18.6% 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 347 residents, a change of about -4 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →

Groton, Connecticut: demographics, income & housing data · CensusEasy