Marlborough is located in Capitol Planning Region Connecticut. Marlborough has a 2024 population of 6,118. Marlborough is currently growing at a rate of 0.2% annually and its population has increased by 0.33% since the most recent census, which recorded a population of 6,098 in 2020.
The average household income in Marlborough is $177,130 with a poverty rate of 8.98%. The median age in Marlborough is 42 years: 40.7 years for males, and 45.4 years for females.
According to the most recent ACS, the racial composition of Marlborough was:
White
Two or more races
Asian
Black or African American
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 2,096 | 2.87 | 91.3 | 8.7 |
| Married | 1,481 | 3.21 | 96.4 | 3.6 |
| Non Family | 342 | 1.34 | 77.5 | 22.5 |
| Female | 159 | 2.52 | 81.8 | 18.2 |
| Male | 114 | 3.63 | 80.7 | 19.3 |
3.02
Average Family Size
2.87
Average Household Size
91.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 80.43%.
All
Male
Female
$77,969
Average Earnings
$90,993
Average Male
$61,098
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
88.5% of Marlborough residents speak only English, while 11.5% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.07% of the population.
rate
8.98%
Overall Poverty Rate
6.93%
Male Poverty Rate
11.13%
Female Poverty Rate
The race most likely to be in poverty in Marlborough is Multiple, with 15.89% below the poverty level.
The race least likely to be in poverty in Marlborough is Black, with 1.72% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 5.62%. Among those working part-time, it was 10.14%, and for those that did not work, the poverty rate was 15.34%.
Married
Widowed
Divorced
Separated
NeverMarried
60.6%
Overall Marriage Rate
59.2%
Male Marriage Rate
62.0%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
11.76%
Veteran Poverty Rate
12.61%
Veteran Disability Rate
LaborForceParticipation
70.4%
Labor Force Participation
64.4%
Employment Rate
8.5%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
64.72%
Born in Marlborough
94.15%
Native Born
5.85%
Foreign Born
1.87%
Non Citizen
3.98%
Naturalized
94.15% of Marlborough residents were born in the United States, with 64.72% having been born in Connecticut. 1.87% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 6,178 | 12 | 0.19% |
| 2028 | 6,166 | 12 | 0.19% |
| 2027 | 6,154 | 12 | 0.2% |
| 2026 | 6,142 | 12 | 0.2% |
| 2025 | 6,130 | 12 | 0.2% |
| 2024 | 6,118 | 12 | 0.2% |
| 2023 | 6,106 | 12 | 0.2% |
| 2022 | 6,094 | -2 | -0.03% |
| 2021 | 6,096 | -2 | -0.03% |
| 2020 | 6,098 | -233 | -3.68% |
| 2019 | 6,331 | -23 | -0.36% |
| 2018 | 6,354 | -8 | -0.13% |
| 2017 | 6,362 | -24 | -0.38% |
| 2016 | 6,386 | -18 | -0.28% |
| 2015 | 6,404 | -10 | -0.16% |
| 2014 | 6,414 | 17 | 0.27% |
| 2013 | 6,397 | -16 | -0.25% |
| 2012 | 6,413 | 5 | 0.08% |
| 2011 | 6,408 | 18 | 0.28% |
| 2010 | 6,390 | 0 | 0% |