Marlborough Flag

Marlborough

County Seat:
No
Area (mi²):
20.864
State:
Massachusetts

Marlborough is a city located in Middlesex County, Massachusetts. Marlborough has a 2026 population of 42,411. Marlborough is currently growing at a rate of 0.29% annually and its population has increased by 1.74% since the most recent census, which recorded a population of 41,685 in 2020.

The median household income in Marlborough is $91,968 with a poverty rate of 9.6%. The median age in Marlborough is 37.5 years: 38 years for males, and 37 years for females. For every 100 females there are 96.5 males.

42.4K
Total Population
2,033
Density (mi²)
121 0.29%
Growth

Marlborough Population

Marlborough Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202642,4111210.29%
202542,2901210.29%
202442,1693850.92%
202341,7843780.91%
202241,4061620.39%
202141,244-441-1.06%
202041,685-115-0.28%
201939,604-140-0.35%
201839,744-82-0.21%
201739,82670.02%
201639,819-6-0.02%
201539,8251130.28%
201439,7122270.57%
201339,4851650.42%
201239,3203720.96%
201138,9483640.94%
201038,584850.22%
200036,2554,44213.96%
199031,8131,1963.91%
198030,6172,6819.6%
197027,9369,11748.45%
196018,8193,06319.44%
195015,7566023.97%
194015,154-433-2.78%
193015,5875593.72%
192015,0284493.08%
191014,5799707.13%
190013,609-196-1.42%
189013,8053,67836.32%
188010,1271,65319.51%
18708,4742,56343.36%
18605,91100%

Median Age

Overall: 37.5 years
Female: 37 years
Male: 38 years

Marlborough Adults

There are 32,994 adults, (6,203 of whom are seniors) in Marlborough.

Sex Ratio

Female: 21,194 (50.9%)
Male: 20,453 (49.1%)

Demographics

The racial composition of Marlborough includes 55.81% White, 12.23% other race, 5.32% Asian, 3.87% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White23,24455.81%
Two or more races9,40822.59%
Other race5,09312.23%
Asian2,2145.32%
Black or African American1,6123.87%
Native American760.18%
Race
Population ↓
Percentage (of total)
Other race3,4788.35%
Two or more races3,1317.52%
White7291.75%
Black or African American830.2%
Native American560.13%
Race
Population ↓
Percentage (of total)
White22,51554.06%
Two or more races6,27715.07%
Asian2,2145.32%
Other race1,6153.88%
Black or African American1,5293.67%
Native American200.05%

Marlborough Marital Status

Economics and Income Statistics

Marlborough 's average per capita income is $57,883. Household income levels show a median of $91,968. The poverty rate stands at 9.6%.

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$134,644-
Families$114,102$136,159
Households$91,968$115,215
Non Families$58,179$74,270

$57,883

Average Income

$91,968

Median Household Income

9.6%

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)