Marlborough Flag

Marlborough

County Seat:
No
Area (mi²):
23.351
State:
Connecticut

Marlborough is located in Capitol Planning Region, Connecticut. Marlborough has a 2026 population of 6,264. Marlborough is currently growing at a rate of 0.58% annually and its population has increased by 2.65% since the most recent census, which recorded a population of 6,102 in 2020.

The median household income in Marlborough is $142,105 with a poverty rate of 9.66%. The median age in Marlborough is 41.8 years: 41.1 years for males, and 43.2 years for females. For every 100 females there are 98.4 males.

6.3K
Total Population
268
Density (mi²)
36 0.58%
Growth

Marlborough Population

Marlborough Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20266,264360.58%
20256,228360.58%
20246,192360.58%
20236,156320.52%
20226,12490.15%
20216,115130.21%
20206,102-32-0.52%
20196,331-23-0.36%
20186,354-8-0.13%
20176,362-24-0.38%
20166,386-18-0.28%
20156,404-10-0.16%
20146,414170.27%
20136,397-16-0.25%
20126,41350.08%
20116,40840.06%
20106,39000%

Median Age

Overall: 41.8 years
Female: 43.2 years
Male: 41.1 years

Marlborough Adults

There are 4,682 adults, (997 of whom are seniors) in Marlborough.

Sex Ratio

Female: 3,089 (50.4%)
Male: 3,041 (49.6%)

Demographics

The racial composition of Marlborough includes 82.2% White, 5.01% Asian, and smaller percentages for Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,03982.2%
Two or more races6129.98%
Asian3075.01%
Black or African American1141.86%
Other race580.95%
Race
Population ↓
Percentage (of total)
Two or more races5478.92%
Other race440.72%
White240.39%
Race
Population ↓
Percentage (of total)
White5,01581.81%
Asian3075.01%
Black or African American1141.86%
Two or more races651.06%
Other race140.23%

Marlborough Marital Status

Economics and Income Statistics

Marlborough 's average per capita income is $77,071. Household income levels show a median of $142,105. The poverty rate stands at 9.66%.

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$151,667-
Families$148,358$179,246
Households$142,105$169,394
Non Families$58,338$88,204

$77,071

Average Income

$142,105

Median Household Income

9.66%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)