Groton

County:: Southeastern CT Planning Region
County Seat:: No
Area (mi²):: 31.11
State:: Connecticut

Groton is located in Southeastern CT Planning Region, Connecticut. Groton has a 2025 population of 37,702. Groton is currently declining at a rate of -0.23% annually and its population has decreased by -1.67% since the most recent census, which recorded a population of 38,343 in 2020.

The average household income in Groton is $110,683 with a poverty rate of 10.05%.The median age in Groton is 36.3 years: 33.3 years for males, and 40.8 years for females.

Demographics

The racial composition of Groton includes 75.43% White, 6.33% Asian, 5.32% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	28,727	75.43%
Two or more races	3,781	9.93%
Asian	2,412	6.33%
Black or African American	2,028	5.32%
Other race	928	2.44%
Native American	210	0.55%

Groton Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Groton's average per capita income is $57,845. Household income levels show a median of $83,547. The poverty rate stands at 10.05%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$123,730	-
Families	$100,278	$129,166
Households	$83,547	$110,683
Non Families	$73,382	$80,801

$57,845

Average Income

$83,547

Median Household Income

10.05%

Poverty Rate