Groton, Connecticut Population 2024

9,329

Groton is a city located in New London County Connecticut. Groton has a 2024 population of 9,329. Groton is currently declining at a rate of -0.11% annually and its population has decreased by -0.35% since the most recent census, which recorded a population of 9,362 in 2020.

The average household income in Groton is $80,810 with a poverty rate of 16.15%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Groton is 38 years, 37.2 years for males, and 41.2 years for females.

Groton Demographics

According to the most recent ACS, the racial composition of Groton was:

  • White: 70.65%
  • Two or more races: 11.38%
  • Black or African American: 8%
  • Asian: 5.79%
  • Other race: 4.02%
  • Native American: 0.16%
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
3.1 sq mi
Density (mi²)
3,025.60/sq mi
Growth Since 2020
-0.35% (-33)
The current population of Groton, Connecticut is 9,329 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 9,362.

Groton, Connecticut Population 2024

Population by Race

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Race
Population
Percentage (of total)
White6,61670.65%
Two or more races1,06611.38%
Black or African American7498%
Asian5425.79%
Other race3764.02%
Native American150.16%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Groton Population by Race

Groton Population Pyramid 2024

Groton Median Age

38

Total

37.2

Male

41.2

Female

Groton Adults

There are 7,731 adults, (1,340 of whom are seniors) in Groton.

Groton Age Dependency

46.5

Age Dependency Ratio

21

Old Age Dependency Ratio

25.6

Child Dependency Ratio

Groton Sex Ratio

Female4,34946.44%
Male5,01553.56%

Groton Population by Age

Groton Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All4,6901.9945.354.7
Non Family2,2831.1135.164.9
Married1,2982.8684.215.8
Female8162.8917.682.4
Male2932.5828.771.3
showing: 5 rows

2.68

Average Family Size

1.99

Average Household Size

45.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Groton Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Groton Educational Attainment by Sex (over 25)

Groton Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 62.83%.

Groton Educational Attainment by Race

All

Male

Female

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$46,661

Average Earnings

$64,342

Average Male

$35,819

Average Female

Groton Earnings by Educational Attainment

Groton Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Groton Language

88.56% of Groton residents speak only English, while 11.44% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.89% of the population.

Groton Language

Groton Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Hispanic1,23946837.77%
White5,9634477.5%
Multiple1,06544441.69%
Black74727436.68%
Other3745614.97%
Asian54281.48%
showing: 6 rows

16.15%

Overall Poverty Rate

15.29%

Male Poverty Rate

17.13%

Female Poverty Rate

Poverty in Groton

The race most likely to be in poverty in Groton is Multiple, with 41.69% below the poverty level.

The race least likely to be in poverty in Groton is Asian, with 1.48% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.12%. Among those working part-time, it was 24.75%, and for those that did not work, the poverty rate was 23.3%.

Groton Poverty

rate

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Rate
Poverty
Less Than 9th Grade41.1%
High School16.96%
Some College4.17%
Bachelors or Greater3.94%
showing: 4 rows

Groton Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed69.32%
Female Employed15.5%
Male Unemployed13.04%
Male Employed4.3%
showing: 4 rows

Groton Poverty Rate by Employment Status and Sex

Groton Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Groton Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

34.0%

Overall Marriage Rate

33.1%

Male Marriage Rate

35.0%

Female Marriage Rate

Groton Married by Age and Sex

male

female

Groton Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Groton Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Groton Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

559

Number of Veterans

509

Male Veterans

50

Female Veterans

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Groton Veterans by War

count

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Groton Veterans by Age

count

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Groton Veterans by Race

Groton Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.94%

Veteran Poverty Rate

33.45%

Veteran Disability Rate

Groton Veterans by Education

LaborForceParticipation

72%

Labor Force Participation

66.1%

Employment Rate

6.1%

Unemployment Rate

Groton Employment by Age

LaborForceParticipation

Groton Employment by Race

LaborForceParticipation

Groton Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

50.03%

Born in Groton

90.1%

Native Born

9.9%

Foreign Born

4.76%

Non Citizen

5.14%

Naturalized

Place of Birth

90.1% of Groton residents were born in the United States, with 50.03% having been born in Connecticut. 4.76% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Groton Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20299,279-10-0.11%
20289,289-10-0.11%
20279,299-10-0.11%
20269,309-10-0.11%
20259,319-10-0.11%
20249,329-10-0.11%
20239,339-10-0.11%
20229,349-10-0.11%
20219,359-3-0.03%
20209,3624274.78%
20198,935-85-0.94%
20189,020-40-0.44%
20179,060-28-0.31%
20169,088-62-0.68%
20159,150-89-0.96%
20149,239-60-0.65%
20139,299-52-0.56%
20129,351110.12%
20119,340-35-0.37%
20109,375-635-6.34%
200010,0101731.76%
19909,837-249-2.47%
198010,0861,15312.91%
19708,933-1,178-11.65%
196010,1113,07543.7%
19507,0362,31749.1%
19404,71959714.48%
19304,122-114-2.69%
19204,236
showing: 29 rows

Groton Population by Year