Marlborough

County:: Capitol Planning Region
County Seat:: No
Area (mi²):: 23.351
State:: Connecticut

Marlborough is located in Capitol Planning Region, Connecticut. Marlborough has a 2025 population of 6,130. Marlborough is currently growing at a rate of 0.2% annually and its population has increased by 0.52% since the most recent census, which recorded a population of 6,098 in 2020.

The average household income in Marlborough is $180,209 with a poverty rate of 9.19%. The median age in Marlborough is 42.8 years: 42.4 years for males, and 43.4 years for females.

Demographics

The racial composition of Marlborough includes 84.41% White, 4.77% Asian, and smaller percentages for Black or African American, 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	5,154	84.41%
Two or more races	471	7.71%
Asian	291	4.77%
Black or African American	122	2%
Other race	68	1.11%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Marlborough Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marlborough's average per capita income is $81,100. Household income levels show a median of $140,022. The poverty rate stands at 9.19%.

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	$152,308	-
Families	$145,938	$191,810
Households	$140,022	$180,209
Non Families	$57,982	$92,207

$81,100

Average Income

$140,022

Median Household Income

9.19%

Poverty Rate