Colchester

County:: Southeastern CT Planning Region
County Seat:: No
Area (mi²):: 4.469
State:: Connecticut

Colchester is a CDP located in Southeastern CT Planning Region, Connecticut. Colchester has a 2025 population of 4,890. Colchester is currently growing at a rate of 0.16% annually but its population has decreased by -4.99% since the most recent census, which recorded a population of 5,147 in 2020.

The average household income in Colchester is $95,625 with a poverty rate of 7.82%. The median age in Colchester is 52 years: 44 years for males, and 57.4 years for females.

Demographics

The racial composition of Colchester includes 93.01% White, and smaller percentages for other race, Two or more races, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,301	93.01%
Other race	126	2.72%
Two or more races	117	2.53%
Black or African American	48	1.04%
Asian	32	0.69%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Colchester Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Colchester's average per capita income is $60,282. Household income levels show a median of $79,685. The poverty rate stands at 7.82%.

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	$104,242	-
Families	$103,220	$116,301
Households	$79,685	$95,625
Non Families	$36,196	$56,339

$60,282

Average Income

$79,685

Median Household Income

7.82%

Poverty Rate