Sudbury

County:: Middlesex County
County Seat:: No
Area (mi²):: 24.271
State:: Massachusetts

Sudbury is located in Middlesex County, Massachusetts. Sudbury has a 2025 population of 20,068. Sudbury is currently growing at a rate of 1.71% annually and its population has increased by 6.29% since the most recent census, which recorded a population of 18,880 in 2020.

The average household income in Sudbury is $289,353 with a poverty rate of 2.56%. The median age in Sudbury is 43.5 years: 42.5 years for males, and 44.3 years for females.

Demographics

The racial composition of Sudbury includes 80.25% White, 10.34% Asian, and smaller percentages for Black or African American, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Native American

Race	Population	Percentage (of total)
White	15,301	80.25%
Asian	1,972	10.34%
Two or more races	1,124	5.9%
Black or African American	509	2.67%
Other race	129	0.68%
Native Hawaiian or Pacific Islander	26	0.14%
Native American	6	0.03%

Sudbury Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sudbury's average per capita income is $135,250. Household income levels show a median of $234,634. The poverty rate stands at 2.56%.

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
Families	$250,001	$319,075
Married Families	$250,001	-
Households	$234,634	$289,353
Non Families	$83,333	$124,171

$135,250

Average Income

$234,634

Median Household Income

2.56%

Poverty Rate