Sudbury Flag

Sudbury

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

Sudbury is located in Middlesex County, Massachusetts. Sudbury has a 2025 population of 20,018 . Sudbury is currently growing at a rate of 1.08% annually and its population has increased by 6.05% since the most recent census, which recorded a population of 18,876 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. For every 100 females there are 94.3 males.

20K
Total Population
825
Density (mi²)
213 1.08%
Growth

Sudbury Population

Sudbury Population

Data after 2023 is projected based on recent change

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 (80.25%)

Asian (10.34%)

Two or more races (5.9%)

Black or African American (2.67%)

Other race (0.68%)

Native Hawaiian or Pacific Islander (0.14%)

Native American (0.03%)

Race
Population
Percentage (of total)
White15,30180.25%
Asian1,97210.34%
Two or more races1,1245.9%
Black or African American5092.67%
Other race1290.68%
Native Hawaiian or Pacific Islander260.14%
Native American60.03%

Sudbury Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)