Census tract · Norfolk County
Census Tract 4010, Norfolk County, Massachusetts
Census Tract 4010, GEOID 25021401000, in Norfolk County, Massachusetts, entirely within Brookline. 3,580 residents in the ACS 2020-2024 5-year estimates (±405); the 2020 Census counted 3,534.
Residents, 2020-2024
3,580
±405 (90% margin)
2020 Census count: 3,534
Median household income
$138,182
±$22,369 (90% margin)
Norfolk County: $130,739
Median home value
$962,400
±$103,281 (90% margin)
Norfolk County: $683,900
Median gross rent
$2,281
±$246 (90% margin)
Norfolk County: $2,149
Where is Census Tract 4010?
Census Tract 4010 is one of 154 census tracts in Norfolk County, Massachusetts. It covers 0.25 square miles of land, 14,308 residents per square mile in 2020. Its GEOID, 25021401000, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Brookline | 100% |
4 census tracts border Census Tract 4010: Tract 4007 ($175,000), Tract 4009 ($82,109), Tract 4011 ($202,169) and Tract 9818 in Suffolk County*. The figure in brackets is each tract's median household income; * a special land-use tract (water, a park or an institution) with few or no residents.
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 4010?
The 2020-2024 American Community Survey puts Census Tract 4010's population at 3,580 (±405) in 1,478 households; the 2020 Census counted 3,534 residents and 1,454 housing units.
| Measure | Tract 4010 | Brookline |
|---|---|---|
| Total population | 3,580±405 | 63,266 |
| Households | 1,478±166 | 27,587 |
| Average household size | 2.42±0.26 | 2.24 |
| Housing units | 1,507±169 | 28,873 |
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 4010?
The median resident of Census Tract 4010 is 36.0 years old; 24.4% are under 18 and 14.5% are 65 or older. The largest group is non-Hispanic white residents at 57.3%, then non-Hispanic Asian residents at 22.9%. 31.4% of residents were born outside the United States.
| Measure | Tract 4010 | Brookline |
|---|---|---|
| Median age | 36.0±2.6 | 35.2 |
| Under 18 years | 24.4%±5.2 pts | 18.7% |
| 65 years and over | 14.5%±3.3 pts | 15.8% |
| Hispanic or Latino (any race) | 9.1%±4.5 pts | 6.2% |
| White alone, not Hispanic | 57.3%±7.4 pts | 64.1% |
| Black or African American alone, not Hispanic | 5.6%±4.6 pts | 3.0% |
| Asian alone, not Hispanic | 22.9%±5.7 pts | 19.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.2 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 4.5%±3.0 pts | 6.8% |
| Some other race alone, not Hispanic | 0.6%±1.0 pts | 0.6% |
| Born outside the United States | 31.4%±6.3 pts | 27.8% |
| Speak a language other than English at home (age 5+) | 37.7%±7.5 pts | 31.2% |
| Civilian veterans (age 18+) | 2.6%±2.9 pts | 2.0% |
| With a disability | 7.7%±3.6 pts | 7.5% |
| No health insurance coverage | 1.4%±1.0 pts | 1.0% |
| High school graduate or higher (age 25+) | 96.4%±2.9 pts | 97.6% |
| Bachelor's degree or higher (age 25+) | 74.9%±5.1 pts | 85.4% |
| Graduate or professional degree (age 25+) | 48.3%±6.3 pts | 57.9% |
| Lived in the same house a year earlier | 80.0%±6.5 pts | 78.8% |
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 4010 earn?
Half of the 1,478 households in Census Tract 4010 earn less than $138,182 a year (±$22,369), against $130,739 across Norfolk County: 72nd highest of the county's 152 tracts with a reliable estimate. 10.6% of residents live below the poverty line.
| Measure | Tract 4010 | Brookline |
|---|---|---|
| Median household income | $138,182±$22,369 | $142,101 |
| Mean household income | $202,779±$31,458 | $219,714 |
| Per capita income | $84,921±$13,898 | $96,682 |
| People below the poverty line | 10.6%±5.1 pts | 8.7% |
| Children under 18 below the poverty line | 18.3%±11.8 pts | 4.7% |
| Households receiving SNAP | 11.3%±5.2 pts | 6.1% |
| Households with a computer | 99.7%±0.6 pts | 97.3% |
| Households with a broadband subscription | 94.4%±3.9 pts | 96.1% |
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 4010?
Owners occupy 52.3% of Census Tract 4010's occupied homes and renters 47.7%. The median owner-occupied home is valued at $962,400 by its owner (±$103,281). The median renter pays $2,281 a month including utilities, and 30.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 4010 | Brookline |
|---|---|---|
| Median home value (owner-occupied) | $962,400±$103,281 | $1,246,800 |
| Median gross rent | $2,281±$246 | $2,835 |
| Renters paying 35% or more of income on rent | 30.8%±12.6 pts | 37.6% |
| Median monthly owner costs, with a mortgage | $3,498±$1,108 | $4,000 or more |
| Owner-occupied homes | 52.3%±8.8 pts | 46.9% |
| Renter-occupied homes | 47.7%±8.8 pts | 53.1% |
| Housing units | 1,507±169 | 28,873 |
| Single-family detached homes | 20.0%±5.7 pts | 18.3% |
| Mobile homes | 0.0%±2.8 pts | 0.0% |
| Built 2020 or later | 0.0%±2.8 pts | 0.4% |
| Built 2010 to 2019 | 0.8%±1.2 pts | 2.7% |
| Built 1939 or earlier | 75.2%±7.0 pts | 51.7% |
| Households with no vehicle | 16.3%±6.0 pts | 26.9% |
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 4010 get to work?
27.5% of Census Tract 4010's workers drive alone and 27.8% work from home. The average trip to work takes 27.2 minutes. The unemployment rate in 2020-2024 averaged 4.7%.
| Measure | Tract 4010 | Brookline |
|---|---|---|
| In the labor force (age 16+) | 79.3%±4.0 pts | 73.2% |
| Unemployment rate | 4.7%±2.6 pts | 3.6% |
| Drove alone to work | 27.5%±6.5 pts | 28.4% |
| Carpooled | 6.6%±4.2 pts | 3.2% |
| Public transportation | 17.8%±5.4 pts | 18.1% |
| Walked | 12.2%±6.2 pts | 14.9% |
| Worked from home | 27.8%±6.2 pts | 30.1% |
| Mean travel time to work | 27.2 min±3.1 | 27.1 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 4010 compare with the other tracts in Norfolk County?
Among Norfolk County's tracts with a reliable estimate, Census Tract 4010 ranks as shown below (1 = highest).
| Measure | In Norfolk County | In Brookline |
|---|---|---|
| Population | 123rd of 153 | 11th of 15 |
| Residents per square mile | 11th of 154 | 10th of 15 |
| Median household income | 72nd of 152 | 9th of 14 |
| Per capita income | 35th of 153 | 11th of 15 |
| Median home value | 34th of 153 | 14th of 15 |
| Median gross rent | 53rd of 130 | 15th of 15 |
| Poverty rate | 24th of 89 | 5th of 10 |
| Bachelor's degree or higher | 35th of 153 | 14th of 15 |
| Median age | 134th of 153 | 7th of 15 |
| Owner-occupied share | 123rd of 153 | 8th of 15 |
The tracts next to it on Norfolk County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4173 | 69th | $139,594±$24,818 · within the margin of this tract |
| Tract 4152.01 | 70th | $139,353±$46,547 · within the margin of this tract |
| Tract 4421.05 | 71st | $139,091±$48,285 · within the margin of this tract |
| Tract 4010 | 72nd | $138,182±$22,369 |
| Tract 4431.03 | 73rd | $138,019±$23,862 · within the margin of this tract |
| Tract 4431.04 | 74th | $137,917±$26,061 · within the margin of this tract |
| Tract 4024 | 75th | $137,125±$35,043 · within the margin of this tract |
"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 4010?
1 of the 18 figures for Census Tract 4010 on this page carries a coefficient of variation over 40% and is 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