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, 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	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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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