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CITY · 1990 CENSUS

Groton

Connecticut · 9,837 residents · 3.083 sq mi
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The short version

Groton has roughly average household income, with a median household income of $30,952. Population has held roughly steady since 2000. Median home value is $140,900. Households here earn about 26% less than the Connecticut median.

At a glance
Average income
near the US median
US median: $30,130
Younger
median age 29.8
US median: 33.0
Less educated
16% hold a bachelor's degree
US average: 20%
Less affordable
home values up 50%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
9,837
−2%vs 2000
vs 10,010 in 2000
1990 – 2025
Median age
29.8
−6%vs 2000
vs 31.6 in 2000
US average: 33.0
Population, 1990 – 2024
9K9K10K10K11K1990201020202024Groton
20249K
1990201020202024
Age distribution, 1990
Under 58.2%(810)
US avg: 7.3%
5 to 96.8%(673)
US avg: 7.3%
10 to 144.3%(420)
US avg: 6.9%
15 to 195.1%(498)
US avg: 7.1%
20 to 2411.8%(1,160)
US avg: 7.5%
25 to 3425.2%(2,477)
US avg: 17.5%
35 to 4411.8%(1,160)
US avg: 15.1%
45 to 548.8%(861)
US avg: 10.2%
55 to 647.5%(740)
US avg: 8.5%
65 to 746.8%(672)
US avg: 7.3%
75 to 842.6%(251)
US avg: 4%
85 and over1.2%(115)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$30,952
+1%inflation adjusted, since 2000
vs $40,515 in 2000
US average: $30,130
1990 – 2024
Per capita income
$15,314
−31%vs 2000
vs $22,239 in 2000
US average: $14,340
Poverty rate
7.9%
−2.0 ptsvs 2000
vs 9.9% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$140,900
+50%inflation adjusted, since 2000
vs $123,500 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$585
+24%inflation adjusted, since 2000
vs $620 in 2000
US average: $450
Owner-occupied
36.2%
−3.7 ptsvs 2000
vs 39.9% in 2000
63.8% rent
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%
1990
White, non-Hispanic87.6%(8,619)
Black8.3%(819)
Hispanic / Latino4.3%(425)
Asian1.5%(146)
Other2.6%(253)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Puerto Rican8.7%(822)
Dominican2.4%(229)
Spaniard0.5%(50)
Peruvian0.3%(29)
Mexican0.3%(24)
Cuban0.2%(15)
Colombian0.1%(5)
Asian origin
Filipino2.1%(204)
Asian Indian1.7%(158)
Pakistani0.7%(71)
Chinese0.7%(70)
Vietnamese0.7%(62)
Ancestry
Irish17.9%(1,702)
Italian17.1%(1,624)
English14.4%(1,366)
German13.2%(1,255)
Polish6.7%(638)
French4.4%(420)
Swedish3.9%(371)
Scottish3.6%(345)
Portuguese1.6%(155)
Norwegian1.6%(154)
West Indian1.6%(153)
+ 23 more ancestry groups with data
American1.5%(141)
Jamaican1.4%(136)
Hungarian1.3%(119)
Scotch-Irish1.1%(103)
Brazilian1%(94)
Arab0.9%(82)
Greek0.7%(63)
Syrian0.6%(53)
Russian0.5%(51)
Swiss0.4%(40)
Canadian0.4%(39)
Lebanese0.3%(29)
Welsh0.2%(17)
Haitian0.2%(17)
British0.2%(15)
Czech0.2%(15)
Austrian0.1%(14)
Cape Verdean0.1%(12)
Ukrainian0.1%(6)
Dutch0%(4)
Danish0%(3)
RANKED:Largest Irish population · Largest Italian population · Largest English population · Largest German population · Largest Puerto Rican population
Section 05

Education

Bachelor's degree or higher
15.6%
−3.1 ptsvs 2000
vs 18.8% in 2000
US average: 20.3%
High school or higher
82.9%
−6.6 ptsvs 2000
vs 89.5% in 2000
US average: 75.2%
Graduate degree
6.0%
−1.0 ptsvs 2000
vs 7.1% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
18.4 min
+51%vs 2000
vs 12.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married42.9%(1,742)
Married42.8%(1,739)
Widowed3.2%(130)
Divorced11.1%(450)
Women 15+
Never married39.9%(1,654)
Married35.6%(1,476)
Widowed4.6%(190)
Divorced19.9%(823)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Groton

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Pop 10,083
Mascotte
Pop 10,150
Bee Ridge
Pop 10,334
Cypress Gardens
Pop 10,077
Places similar to Groton
Head to head

Compare Groton to nearby cities

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Income$59,098+91%
Home value$253,300+80%
Population28,003+176%
SEE FULL COMPARISON →
GROTON VS
Conning Towers-Nautilus Park
Income$81,694+164%
Home value$290,100+106%
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GROTON VS
Westerly
Income$95,207+208%
Home value$448,800+219%
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GROTON VS
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Income$65,024+110%
Home value$242,300+72%
Population40,001+294%
SEE FULL COMPARISON →
Frequently asked

How many people live in Groton, Connecticut?

Groton, Connecticut has about 9,837 residents according to the 1990 Census.

What is the median household income in Groton, Connecticut?

The typical household in Groton, Connecticut earns about $30,952 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 $140,900, and the typical rent is about $585 a month.

How educated are people in Groton, Connecticut?

About 15.6% 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 7.9% of people in Groton, Connecticut live below the federal poverty line.

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

How we source and harmonize this data →