Holliston

County:: Middlesex County
County Seat:: No
Area (mi²):: 18.655
State:: Massachusetts

Holliston is located in Middlesex County, Massachusetts. Holliston has a 2025 population of 15,173. Holliston is currently growing at a rate of 0.52% annually and its population has increased by 1.25% since the most recent census, which recorded a population of 14,985 in 2020.

The average household income in Holliston is $194,643 with a poverty rate of 3.17%.The median age in Holliston is 45.1 years: 44.8 years for males, and 45.3 years for females.

Demographics

The racial composition of Holliston includes 84.45% White, 6.56% Asian, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	12,637	84.45%
Asian	981	6.56%
Two or more races	902	6.03%
Other race	338	2.26%
Black or African American	106	0.71%

Holliston Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Holliston's average per capita income is $91,626. Household income levels show a median of $154,684. The poverty rate stands at 3.17%.

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	$206,944	-
Families	$182,275	$223,657
Households	$154,684	$194,643
Non Families	$50,714	$82,389

$91,626

Average Income

$154,684

Median Household Income

3.17%

Poverty Rate