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 and multiracial populations.

Population by Race

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%

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