Belmont

County:: Middlesex County
County Seat:: No
Area (mi²):: 4.647
State:: Massachusetts

Belmont is a CDP located in Middlesex County, Massachusetts. Belmont has a 2025 population of 27,564. Belmont is currently growing at a rate of 0.69% annually and its population has increased by 5.38% since the most recent census, which recorded a population of 26,158 in 2020.

The average household income in Belmont is $239,287 with a poverty rate of 3.45%. The median age in Belmont is 42.4 years: 42 years for males, and 42.9 years for females.

Demographics

The racial composition of Belmont includes 69.62% White, 20.38% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	18,804	69.62%
Asian	5,504	20.38%
Two or more races	1,792	6.63%
Other race	454	1.68%
Black or African American	446	1.65%
Native American	9	0.03%
Native Hawaiian or Pacific Islander	0	0%

Belmont Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Belmont's average per capita income is $107,152. Household income levels show a median of $178,188. The poverty rate stands at 3.45%.

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	$228,553	-
Families	$212,881	$278,356
Households	$178,188	$239,287
Non Families	$85,294	$119,095

$107,152

Average Income

$178,188

Median Household Income

3.45%

Poverty Rate