Town · Massachusetts
Billerica, Massachusetts
Billerica, town, in Middlesex County, Massachusetts. Billerica had 42,632 residents on July 1, 2025 by the Census Bureau's estimate, up 1.3% since 2020; the 2020 Census counted 42,119 and the ACS 2020-2024 5-year estimates put it at 42,003 (±32). GEOID 2501705805.
Residents, July 2025 estimate
42,632
Census Bureau estimate (no margin published)
2020 Census count: 42,119 · ACS 2020-2024: 42,003 ±32
Median household income
$148,200
±$7,519 (90% margin)
Massachusetts: $103,960
Median home value
$612,000
±$12,586 (90% margin)
Massachusetts: $562,100
Median gross rent
$2,282
±$173 (90% margin)
Massachusetts: $1,762
Where is Billerica and what county is it in?
Billerica is a town in Middlesex County, Massachusetts. It covers 25.6 square miles of land, 1,647 residents per square mile in 2020.
One place lies inside Billerica: Pinehurst (CDP, 7,368 in 2020).
Billerica is in the Boston-Cambridge-Newton, MA-NH metropolitan statistical area, which takes in 7 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Billerica, and is it growing?
The Census Bureau estimates that 42,632 people lived in Billerica on July 1, 2025, up 1.3% since 2020, in line with Massachusetts (+1.7%). The 2020 Census counted 42,119 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 42,003 (±32).
| Measure | Billerica | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 42,003±32 | 1,638,365 | −1,197 |
| Households | 15,502±418 | 634,215 | +567 |
| Average household size | 2.64±0.07 | 2.49 | −0.16 |
| Housing units | 15,632±429 | 664,267 | no clear change |
Billerica's population since 2000
From 38,981 in 2000 to 42,632 in 2025: up 9.4%. The 2000, 2010 and 2020 figures are census counts, each for Billerica as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Billerica?
The median resident of Billerica is 43.3 years old; 18.0% are under 18 and 18.0% are 65 or older. The largest group is non-Hispanic white residents at 76.2%, then non-Hispanic Asian residents at 9.4%. 15.8% of residents were born outside the United States.
| Measure | Billerica | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.3±1.6 | 38.9 | +1.9 |
| Under 18 years | 18.0%±1.4 pts | 19.5% | – |
| 65 years and over | 18.0%±1.4 pts | 16.3% | – |
| Male | 51.2%±1.8 pts | 49.4% | – |
| Hispanic or Latino (any race) | 6.1%±1.7 pts | 9.3% | no clear change |
| White alone, not Hispanic | 76.2%±2.9 pts | 65.1% | −5.6 pts |
| Black or African American alone, not Hispanic | 2.9%±0.9 pts | 4.7% | no clear change |
| Asian alone, not Hispanic | 9.4%±1.8 pts | 13.6% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.9%±1.5 pts | 5.8% | – |
| Some other race alone, not Hispanic | 0.5%±0.4 pts | 1.4% | – |
| Born outside the United States | 15.8%±2.6 pts | 23.1% | +3.2 pts |
| Speak a language other than English at home (age 5+) | 20.4%±3.2 pts | 29.1% | – |
| Civilian veterans (age 18+) | 4.2%±0.9 pts | 3.3% | – |
| With a disability | 11.3%±1.6 pts | 9.9% | – |
| No health insurance coverage | 1.3%±0.7 pts | 2.4% | no clear change |
| High school graduate or higher (age 25+) | 93.8%±1.0 pts | 93.2% | – |
| Bachelor's degree or higher (age 25+) | 40.0%±2.8 pts | 59.5% | +3.9 pts |
| Graduate or professional degree (age 25+) | 14.2%±2.1 pts | 30.5% | – |
| Lived in the same house a year earlier | 90.8%±1.6 pts | 87.2% | – |
| Moved from another state in the past year | 1.6%±0.7 pts | 2.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Billerica earn?
Half of Billerica's 15,502 households earn less than $148,200 a year (±$7,519), against $130,847 in Middlesex County and $103,960 in Massachusetts. In 2015-2019 the median was $129,645 in 2024 dollars, so it rose by $18,555 after inflation. 5.4% of residents live below the poverty line.
| Measure | Billerica | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $148,200±$7,519 | $130,847 | +$18,555 |
| Mean household income | $161,745±$7,127 | $178,070 | – |
| Per capita income | $59,965±$3,025 | $69,556 | +$9,292 |
| People below the poverty line | 5.4%±1.4 pts | 7.7% | +1.8 pts |
| Children under 18 below the poverty line | 3.8%±2.1 pts | 7.9% | no clear change |
| Households receiving SNAP | 8.5%±1.9 pts | 9.3% | – |
| Households with a computer | 96.1%±1.3 pts | 97.0% | – |
| Households with a broadband subscription | 95.6%±1.4 pts | 94.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Billerica?
Owners occupy 79.4% of Billerica's occupied homes and renters 20.6%. The median owner-occupied home is valued at $612,000 by its owner (±$12,586). The median renter pays $2,282 a month including utilities, and 34.7% of renters pay 35% or more of their income on rent.
| Measure | Billerica | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $612,000±$12,586 | $727,800 | +$113,815 |
| Median gross rent | $2,282±$173 | $2,201 | +$402 |
| Renters paying 35% or more of income on rent | 34.7%±8.9 pts | 37.6% | no clear change |
| Median monthly owner costs, with a mortgage | $2,763±$101 | $3,224 | – |
| Owner-occupied homes | 79.4%±2.9 pts | 61.3% | no clear change |
| Renter-occupied homes | 20.6%±2.9 pts | 38.7% | – |
| Housing units | 15,632±429 | 664,267 | no clear change |
| Homeowner vacancy rate | 0.2%±0.2 pts | 0.6% | – |
| Rental vacancy rate | 1.1%±1.6 pts | 3.4% | – |
| Single-family detached homes | 73.3%±2.9 pts | 46.5% | – |
| Mobile homes | 0.5%±0.5 pts | 0.4% | – |
| Built 2020 or later | 2.7%±1.1 pts | 1.2% | – |
| Built 2010 to 2019 | 6.7%±1.9 pts | 7.3% | – |
| Built 1939 or earlier | 10.2%±1.8 pts | 32.3% | – |
| Households with no vehicle | 4.2%±1.3 pts | 10.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Billerica building?
Builders took permits for 26 new housing units in Billerica in 2025 (26 in single-family houses), 0.6 per 1,000 residents against 1.7 across Massachusetts.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Billerica work and get to work?
69.0% of Billerica's workers drive alone and 19.5% work from home. The average trip to work takes 26.7 minutes. The unemployment rate in 2020-2024 averaged 3.8%.
| Measure | Billerica | Middlesex County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 70.6%±2.2 pts | 69.9% | – |
| Unemployment rate | 3.8%±1.0 pts | 4.4% | no clear change |
| Drove alone to work | 69.0%±3.6 pts | 54.2% | – |
| Carpooled | 7.8%±1.7 pts | 6.3% | – |
| Public transportation | 1.2%±0.4 pts | 7.2% | – |
| Walked | 1.3%±0.7 pts | 4.2% | – |
| Worked from home | 19.5%±3.3 pts | 24.7% | +16.9 pts |
| Mean travel time to work | 26.7 min±1.2 | 29.9 min | −3.4 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Billerica?
7 census tracts lie mostly in Billerica (2020 census blocks). Their median household incomes run from $109,868 (Tract 3162.02) to $171,542 (Tract 3162.01).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3163Middlesex County | 8,669 | $114,798 |
| Tract 3164Middlesex County | 7,131 | $168,088 |
| Tract 3165Middlesex County | 6,869 | $119,432 |
| Tract 3161.02Middlesex County | 6,512 | $169,095 |
| Tract 3162.01Middlesex County | 4,575 | $171,542 |
| Tract 3161.01Middlesex County | 4,548 | $151,667 |
| Tract 3162.02Middlesex County | 3,699 | $109,868 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Billerica) · Census block assignment files
How does Billerica compare with other places in Massachusetts?
By the Census Bureau's July 2025 estimates, Billerica is the 209th-most populous of the 16,079 U.S. towns and townships that have one and the 2nd-most populous of 266 in Massachusetts.
Billerica ranks 85th of 453 places in Massachusetts with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 2nd | 266 |
| Growth 2020-2025 (PEP) | 162nd | 292 |
| Residents per square mile | 112th | 461 |
| Median household income | 85th | 453 |
| Per capita income | 184th | 460 |
| Median home value | 161st | 459 |
| Median gross rent | 42nd | 410 |
| Poverty rate | 213th | 338 |
| Bachelor's degree or higher | 299th | 459 |
| Median age | 273rd | 461 |
| Owner-occupied share | 237th | 460 |
| Work from home | 194th | 429 |
| Travel time to work | 321st | 459 |
Billerica's figures with every place in Massachusetts (CSV)
Every place in Massachusetts, sortable · Compare Billerica with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Billerica?
6 of the 57 figures for Billerica on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Billerica are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.