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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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