PlainCities

Census tract · Middlesex County

Census Tract 3231.02, Middlesex County, Massachusetts

Census Tract 3231.02, GEOID 25017323102, in Middlesex County, Massachusetts, entirely within Stow. 3,478 residents in the ACS 2020-2024 5-year estimates (±429); the 2020 Census counted 3,355.

Residents, 2020-2024

3,478

±429 (90% margin)
2020 Census count: 3,355

Median household income

$221,146

±$37,036 (90% margin)
Middlesex County: $130,847

Median home value

$719,500

±$43,716 (90% margin)
Middlesex County: $727,800

Median gross rent

$2,531

±$1,133 (90% margin)
Middlesex County: $2,201

Where is Census Tract 3231.02?

Census Tract 3231.02 is one of 357 census tracts in Middlesex County, Massachusetts. It covers 7.95 square miles of land, 422 residents per square mile in 2020. Its GEOID, 25017323102, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 3231.02 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Stow100%
Census Tract 3231.02 (marked with a dot) in Middlesex County, Massachusetts. Boundaries: Census Bureau 2024.
32243231.013632.013641.01388171517614.01 3231.02 2 mi
Census Tract 3231.02 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000. Dashed: tracts outside Middlesex County.

7 census tracts border Census Tract 3231.02: Tract 3224 ($122,839), Tract 3231.01 ($175,220), Tract 3632.01 ($232,000), Tract 3641.01 ($126,786), Tract 3881 ($144,611), Tract 7151 in Worcester County ($205,449) and Tract 7614.01 in Worcester County ($215,000). The figure in brackets is each tract's median household income.

Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.

Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files

How many people live in Census Tract 3231.02?

The 2020-2024 American Community Survey puts Census Tract 3231.02's population at 3,478 (±429) in 1,273 households; the 2020 Census counted 3,355 residents and 1,262 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 3231.02StowMiddlesex CountyMassachusetts
Total population3,478±4297,1651,638,3657,044,056
Households1,273±1762,773634,2152,785,042
Average household size2.73±0.152.582.492.44
Housing units1,273±1762,820664,2673,030,406

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Census Tract 3231.02?

The median resident of Census Tract 3231.02 is 41.3 years old; 24.4% are under 18 and 15.6% are 65 or older. The largest group is non-Hispanic white residents at 79.7%, then non-Hispanic Asian residents at 11.7%. 16.3% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureTract 3231.02StowMiddlesex CountyMassachusetts
Median age41.3±4.144.138.940.0
Under 18 years24.4%±4.2 pts22.3%19.5%19.4%
65 years and over15.6%±3.7 pts19.1%16.3%17.9%
Hispanic or Latino (any race)1.6%±1.3 pts2.9%9.3%13.3%
White alone, not Hispanic79.7%±9.9 pts85.1%65.1%66.6%
Black or African American alone, not Hispanic1.8%±2.0 pts3.2%4.7%6.4%
Asian alone, not Hispanic11.7%±9.7 pts6.1%13.6%7.3%
American Indian and Alaska Native alone, not Hispanic0.0%±1.2 pts0.0%0.1%0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±1.2 pts0.0%0.0%0.0%
Two or more races, not Hispanic4.9%±3.4 pts2.6%5.8%5.1%
Some other race alone, not Hispanic0.3%±0.4 pts0.1%1.4%1.2%
Born outside the United States16.3%±9.2 pts11.6%23.1%18.0%
Speak a language other than English at home (age 5+)17.0%±10.5 pts11.2%29.1%25.1%
Civilian veterans (age 18+)3.8%±1.8 pts4.1%3.3%4.3%
With a disability4.4%±2.3 pts7.9%9.9%12.3%
No health insurance coverage0.5%±0.6 pts0.8%2.4%2.6%
High school graduate or higher (age 25+)98.1%±1.3 pts98.6%93.2%91.4%
Bachelor's degree or higher (age 25+)79.0%±6.3 pts75.1%59.5%47.3%
Graduate or professional degree (age 25+)44.3%±7.1 pts41.7%30.5%21.8%
Lived in the same house a year earlier90.7%±6.4 pts89.2%87.2%88.3%

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 Census Tract 3231.02 earn?

Half of the 1,273 households in Census Tract 3231.02 earn less than $221,146 a year (±$37,036), against $130,847 across Middlesex County: 31st highest of the county's 350 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 3231.02StowMiddlesex CountyMassachusetts
Median household income$221,146±$37,036$185,809$130,847$103,960
Mean household income$239,369±$36,032$223,202$178,070$144,950
Per capita income$88,089±$13,079$86,307$69,556$57,897
People below the poverty line7.6%±9.0 pts5.2%7.7%10.0%
Children under 18 below the poverty line14.5%±20.1 pts7.7%7.9%11.7%
Households receiving SNAP0.6%±1.0 pts3.7%9.3%14.7%
Households with a computer99.1%±1.3 pts97.4%97.0%95.7%
Households with a broadband subscription100.0%±3.3 pts98.4%94.7%92.8%

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 Census Tract 3231.02?

Owners occupy 95.4% of Census Tract 3231.02's occupied homes and renters 4.6%. The median owner-occupied home is valued at $719,500 by its owner (±$43,716). The median renter pays $2,531 a month including utilities.

Housing, ACS 2020-2024 5-year estimates
MeasureTract 3231.02StowMiddlesex CountyMassachusetts
Median home value (owner-occupied)$719,500±$43,716$729,600$727,800$562,100
Median gross rent$2,531±$1,133$1,782$2,201$1,762
Renters paying 35% or more of income on rent0.0%±55.8 pts35.6%37.6%41.8%
Median monthly owner costs, with a mortgage$3,628±$394$3,636$3,224$2,726
Owner-occupied homes95.4%±3.1 pts85.4%61.3%62.5%
Renter-occupied homes4.6%±3.1 pts14.6%38.7%37.5%
Housing units1,273±1762,820664,2673,030,406
Single-family detached homes90.1%±3.3 pts79.7%46.5%51.1%
Mobile homes0.0%±3.3 pts0.0%0.4%0.8%
Built 2020 or later0.0%±3.3 pts0.2%1.2%1.0%
Built 2010 to 201916.6%±7.2 pts12.3%7.3%6.2%
Built 1939 or earlier11.7%±6.2 pts21.9%32.3%30.5%
Households with no vehicle0.0%±3.3 pts2.2%10.3%11.7%

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 do people in Census Tract 3231.02 get to work?

46.7% of Census Tract 3231.02's workers drive alone and 44.4% work from home. The average trip to work takes 38.8 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 3231.02StowMiddlesex CountyMassachusetts
In the labor force (age 16+)73.5%±5.4 pts70.5%69.9%67.0%
Unemployment rate0.9%±1.0 pts4.1%4.4%5.2%
Drove alone to work46.7%±9.2 pts56.5%54.2%61.2%
Carpooled5.5%±4.1 pts4.0%6.3%7.0%
Public transportation3.0%±2.7 pts2.4%7.2%6.5%
Walked0.0%±2.2 pts0.0%4.2%4.1%
Worked from home44.4%±9.8 pts36.6%24.7%18.6%
Mean travel time to work38.8 min±4.835.7 min29.9 min29.1 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

How does Census Tract 3231.02 compare with the other tracts in Middlesex County?

Among Middlesex County's tracts with a reliable estimate, Census Tract 3231.02 ranks as shown below (1 = highest).

Census Tract 3231.02's rank among the tracts of Middlesex County
MeasureIn Middlesex County
Population260th of 354
Residents per square mile344th of 357
Median household income31st of 350
Per capita income72nd of 354
Median home value185th of 350
Median gross rent102nd of 327
Bachelor's degree or higher79th of 354
Median age155th of 354
Owner-occupied share16th of 351

The tracts next to it on Middlesex County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 374028th$225,556±$30,232 · within the margin of this tract4,577
Tract 3652.0229th$222,614±$46,454 · within the margin of this tract4,863
Tract 354230th$221,250±$84,393 · within the margin of this tract3,395
Tract 3231.0231st$221,146±$37,0363,478
Tract 357432nd$220,357±$29,494 · within the margin of this tract2,426
Tract 318333rd$218,359±$11,675 · within the margin of this tract8,288
Tract 3662.0234th$217,083±$36,194 · within the margin of this tract5,356

"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed

How reliable are the figures for Census Tract 3231.02?

4 of the 18 figures for Census Tract 3231.02 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.

A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections