Sudbury, MA demographics:
population, income, and more

Total population
19,246
1.1% year-over-year change
Median household income
$236,509/yr
0.8% year-over-year change
Housing units
6,471
0.5% year-over-year change

Sudbury population

How many people live in Sudbury

Sudbury is home to 19,246 residents, according to the most recent Census data. Gender-wise, 47.8% of Sudbury locals are male, and 52.2% are female.

Total population
19,246
1.1% year-over-year change
Gender ratio
Male
47.8%
9,203
Female
52.2%
10,042
Value Percent YoY change
Male 9,203 47.8% -0.4%
Female 10,042 52.2% 2.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Sudbury is 42, with the population distributed as follows: about 21.2% are children under 15, then 13% are in the 15 to 24 age group. Adults between 25 and 44 make up 19.1% of the population, while another 31.1% fall into the 45 to 64 bracket. Finally, around 15.5% are 65 or older.

Median age
42.3
Age breakdown
Under 15
21.2%
15 to 24
13%
25 to 44
19.1%
45 to 64
31.1%
Over 65
15.5%
Value Percent YoY change
Under 15 4,090 21.2% 0.2%
15 to 24 2,511 13% 4.8%
25 to 44 3,676 19.1% 6.2%
45 to 64 5,979 31.1% -2.5%
Over 65 2,989 15.5% 0.5%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Sudbury, 85.5% of the population are US-born citizens, while 10.4% have gained naturalized citizenship. At the same time, 4.1% of residents are non-citizens. As for race, 79% of locals are Caucasian, 2% are African American and 10.9% have Asian roots. Another 0.1% are Indigenous American, 0.1% are Pacific Islanders, while 1.4% identify as another race. There’s also a share of 6.6% that includes residents with two or more races.

Citizenship
U.S.-born citizens
85.5%
Non-U.S.-born citizens
10.4%
Non-citizens
4.1%
Value Percent YoY change
U.S.-born citizens 16,454 85.5% 0.6%
Non-U.S.-born citizens 2,010 10.4% 6.6%
Non-citizens 781 4.1% -2.9%
Racial breakdown
White
79%
Black or African American
2%
American Indian and Alaska Native
0.1%
Asian
10.9%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
6.6%
Other
1.4%
Value Percent
White 15,202 79%
Black or African American 381 2%
American Indian and Alaska Native 11 0.1%
Asian 2,090 10.9%
Native Hawaiian and other Pacific Islander 24 0.1%
Two or more races 1,268 6.6%
Other 270 1.4%

Households in Sudbury

A peek inside Sudbury households

Sudbury has 6,271 households, with an average of 3 members in each. Of these, 85.4% are families, while the remaining 14.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
6,271
-0.8% year-over-year change
Average people per household
3
Non-family households
914
Family households
5,357
Value Percent YoY change
Non-family households 914 14.6% -11.0%
Family households 5,357 85.4% 1.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Sudbury

The housing landscape of Sudbury

Sudbury's housing consists of 6,471 units, with 84% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.1% and offer a more compact, shared living style.

Housing units
6,471
0.5% year-over-year change
Housing types
Value Percent
1 unit, detached 5,439 84%
1 unit, attached 525 8.1%
2 units 25 0.4%
3 or 4 units 71 1.1%
5 to 9 units 94 1.4%
10 to 19 units 32 0.5%
20 to 49 units 145 2.2%
50 or more units 140 2.2%
Homes built since 2020
150
97.4% year-over-year change

The age of buildings in Sudbury

In Sudbury, the median construction year is 1976. About 5.7% of homes were built before the 1940s, with another 2.5% going up by 1949. Most development happened in the second half of the 20th century. Then, 11.3% of homes were added from 2000 to 2009, 10.2% between 2010 and 2019, and 2.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 370 5.7% 2.2%
Built between 1940 and 1949 162 2.5% 14.9%
Built between 1950 and 1959 1,072 16.6% -8.1%
Built between 1960 and 1969 1,198 18.5% -1.2%
Built between 1970 and 1979 680 10.5% -0.4%
Built between 1980 and 1989 774 12% 13.3%
Built between 1990 and 1999 672 10.4% -3.0%
Built between 2000 and 2009 731 11.3% -1.8%
Built between 2010 and 2019 662 10.2% -2.2%
Built in 2020 or later 150 2.3% 97.4%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Sudbury occupancy rates

Out of the 6,271 occupied housing units in Sudbury, 90.2% are owner-occupied, while 9.8% are lived in by tenants. Meanwhile, 3.1% of all homes on the local market sit vacant.

Occupied housing units
6,271
-0.8% year-over-year change
Occupancy breakdown
Renter occupied
615
Owner occupied
5,656
Value Percent YoY
change
Renter occupied 615 9.8% -0.7%
Owner occupied 5,656 90.2% -0.8%
Unoccupied housing units
3.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Sudbury housing costs

Housing costs in Sudbury come to a median of $3,672 per month, while tenants specifically pay a median gross rent of $1,423.

Median housing costs per month
$3,672/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Sudbury
$1,423/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Sudbury

Sudbury education at a glance

About 9.9% of the population in Sudbury went to high school, while 9% pursued college studies. Another 3.1% earned an associate degree and 35.6% hold a bachelor’s. Meanwhile, 42% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 55 0.4% -27.6%
High school diploma 1,356 9.9% -11.0%
College diploma 1,238 9% 31.8%
Associate degree 429 3.1% 23.3%
Bachelor's degree 4,902 35.6% -0.9%
Graduate degree 5,773 42% -0.1%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Sudbury

How much people earn in Sudbury

The average annual household income in Sudbury was $290,141 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.3% change from the previous year. At the same time, the median income stood at $236,509, reflecting a +0.8% shift over the same period.

Average household income in Sudbury
$290,141/year
0.3% year-over-year change
Median household income in Sudbury
$236,509/year
0.8% year-over-year change

Sudbury income by age

In Sudbury, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $250,001. Those with someone between 45 and 64 in charge, often well established professionally, earn $250,001 overall. Overall, 97% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $250,001 0.0%
45 - 64 $250,001 0.0%
Over 65 $115,833 -8.8%
Above poverty level
18,304
Below poverty level
557
Value Percent YoY
change
Above poverty level 18,304 97% 0.8%
Below poverty level 557 3% 15.3%

Employment in Sudbury

Workforce and job types in Sudbury

96.5% of the working population are employed in professional or administrative positions, while 3.5% are in hands-on or service-based jobs. Also, 11.8% run their own businesses, 63.2% are employed by private companies, and 10.3% work in the public sector.

Workforce demographics

White collar
8,744
Blue collar
317
Value Percent YoY change
White collar 8,744 96.5% 4.7%
Blue collar 317 3.5% -9.7%
Employer type
Self employees
11.8%
Private companies
63.2%
Governmental workers
10.3%
Not for profit companies
14.6%
Value Percent YoY change
Self employees 1,072 11.8% 6.1%
Private companies 5,728 63.2% -0.7%
Governmental workers 936 10.3% 40.1%
Not for profit companies 1,325 14.6% 5.6%

Transportation in Sudbury

How people get around in Sudbury

Commuting methods vary: 95.2% of residents travel by personal vehicle and 1.8% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 5,486 95.2% -0.2%
Bus or trolleybus 29 0.5% 38.1%
Railroad 113 2% 31.4%
Ferryboat 10 0.2% N/A
Bicycle 22 0.4% 0.0%
Walk 101 1.8% 12.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Sudbury by zipcode?

Zipcode Population Number of households Median income Average income
01776 19,270 6,279 $236,509 $290,141

Explore more communities

FAQs about Sudbury demographics 

What is the total population of Sudbury?

Sudbury has a total population of 19,246 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.1% compared to a year ago.

What is the gender ratio in Sudbury?

The gender ratio in Sudbury is as follows:
  • 47.8% males (9,203 residents)
  • 52.2% females (10,042 residents)

What is the median age in Sudbury?

The median age in Sudbury is 42.3.

What is the age distribution of the population in Sudbury?

The age distribution in Sudbury is as follows:
  • Under 15: 21.2% (4,090 residents)
  • Ages 15-24: 13% (2,511 residents)
  • Ages 25-44: 19.1% (3,676 residents)
  • Ages 45-64: 31.1% (5,979 residents)
  • Over 65: 15.5% (2,989 residents)

What is the racial and ethnic makeup of Sudbury?

The racial and ethnic makeup of Sudbury is as follows:
  • White: 79% (15,202 residents)
  • Black or African American: 2% (381 residents)
  • American Indian and Alaska Native: 0.1% (11 residents)
  • Asian: 10.9% (2,090 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (24 residents)
  • Two or More Races: 6.6% (1,268 residents)
  • Other: 1.4% (270 residents)

What percentage of the population in Sudbury are U.S.-born citizens?

U.S.-born citizens represent 85.5% of the population in Sudbury.

How many housing units are there in Sudbury?

There are 6,471 housing units in Sudbury, reflecting a +0.5% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Sudbury and what is the average household size?

Sudbury has a total of 6,271 households, with an average of 3 people in each.

What is the median household income in Sudbury?

Sudbury has a median household income of $236,509, representing a +0.8% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Sudbury?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 96.5% (8,744 residents)
  • Blue-collar workers: 3.5% (317 residents)

Places of employment:
  • Self-employed: 11.8% (1,072 residents)
  • Private companies: 63.2% (5,728 residents)
  • Governmental workers: 10.3% (936 residents)
  • Not-for-profit companies: 14.6% (1,325 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025