Marlborough Flag

Marlborough

County Seat:
No
Area (mi²):
0.227
State:
Missouri

Marlborough is a village located in St. Louis County, Missouri. Marlborough has a 2025 population of 2,154. Marlborough is currently declining at a rate of -0.6% annually and its population has decreased by -2.89% since the most recent census, which recorded a population of 2,218 in 2020.

The average household income in Marlborough is $58,885 with a poverty rate of 7.35%.The median age in Marlborough is 31.7 years: 30.4 years for males, and 36.7 years for females.

2.2K
Total Population
9,485
Density (mi²)
-13 -0.6%
Growth

Marlborough Population

Marlborough Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marlborough includes 79.42% White, 6.59% Black or African American, 3.51% Asian, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White1,87979.42%
Two or more races24810.48%
Black or African American1566.59%
Asian833.51%

Marlborough Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marlborough's average per capita income is $36,611. Household income levels show a median of $47,011. The poverty rate stands at 7.35%.

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$108,898-
Families$107,669$95,250
Households$47,011$58,885
Non Families$35,875$38,851

$36,611

Average Income

$47,011

Median Household Income

7.35%

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)