Census tract · Norfolk County
Census Tract 4122, Norfolk County, Massachusetts
Census Tract 4122, GEOID 25021412200, in Norfolk County, Massachusetts, entirely within Westwood. 3,648 residents in the ACS 2020-2024 5-year estimates (±563); the 2020 Census counted 3,899.
Residents, 2020-2024
3,648
±563 (90% margin)
2020 Census count: 3,899
Median household income
$200,921
±$58,946 (90% margin)
Norfolk County: $130,739
Median home value
$1,031,700
±$99,795 (90% margin)
Norfolk County: $683,900
Median gross rent
$2,323
±$91 (90% margin)
Norfolk County: $2,149
Where is Census Tract 4122?
Census Tract 4122 is one of 154 census tracts in Norfolk County, Massachusetts. It covers 4.53 square miles of land, 861 residents per square mile in 2020. Its GEOID, 25021412200, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Westwood | 100% |
5 census tracts border Census Tract 4122: Tract 4025 ($128,900), Tract 4033 ($250,000 or more), Tract 4051 ($250,000 or more), Tract 4121 ($249,583) and Tract 4123 ($172,798). 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 4122?
The 2020-2024 American Community Survey puts Census Tract 4122's population at 3,648 (±563) in 1,348 households; the 2020 Census counted 3,899 residents and 1,322 housing units.
| Measure | Tract 4122 | Westwood |
|---|---|---|
| Total population | 3,648±563 | 16,318 |
| Households | 1,348±183 | 5,592 |
| Average household size | 2.54±0.18 | 2.88 |
| Housing units | 1,513±200 | 5,796 |
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 4122?
The median resident of Census Tract 4122 is 49.8 years old; 20.0% are under 18 and 29.1% are 65 or older. The largest group is non-Hispanic white residents at 81.1%, then Hispanic or Latino residents (of any race) at 8.3%. 14.6% of residents were born outside the United States.
| Measure | Tract 4122 | Westwood |
|---|---|---|
| Median age | 49.8±2.0 | 43.9 |
| Under 18 years | 20.0%±3.5 pts | 26.1% |
| 65 years and over | 29.1%±6.0 pts | 19.7% |
| Hispanic or Latino (any race) | 8.3%±6.4 pts | 4.0% |
| White alone, not Hispanic | 81.1%±6.9 pts | 77.9% |
| Black or African American alone, not Hispanic | 0.8%±0.7 pts | 1.4% |
| Asian alone, not Hispanic | 7.2%±3.7 pts | 10.8% |
| 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 | 2.6%±2.3 pts | 4.5% |
| Some other race alone, not Hispanic | 0.0%±1.2 pts | 1.3% |
| Born outside the United States | 14.6%±3.8 pts | 13.8% |
| Speak a language other than English at home (age 5+) | 22.3%±6.5 pts | 19.5% |
| Civilian veterans (age 18+) | 3.7%±2.0 pts | 3.7% |
| With a disability | 12.2%±4.3 pts | 9.2% |
| No health insurance coverage | 0.0%±1.2 pts | 0.3% |
| High school graduate or higher (age 25+) | 93.2%±5.3 pts | 95.3% |
| Bachelor's degree or higher (age 25+) | 65.3%±9.3 pts | 72.4% |
| Graduate or professional degree (age 25+) | 30.6%±7.7 pts | 37.4% |
| Lived in the same house a year earlier | 89.1%±5.9 pts | 87.6% |
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 4122 earn?
Half of the 1,348 households in Census Tract 4122 earn less than $200,921 a year (±$58,946), against $130,739 across Norfolk County: 25th highest of the county's 152 tracts with a reliable estimate. 3.5% of residents live below the poverty line.
| Measure | Tract 4122 | Westwood |
|---|---|---|
| Median household income | $200,921±$58,946 | $223,125 |
| Mean household income | $252,476±$34,594 | $276,374 |
| Per capita income | $95,899±$14,241 | $94,692 |
| People below the poverty line | 3.5%±1.3 pts | 4.6% |
| Children under 18 below the poverty line | 0.0%±5.7 pts | 1.1% |
| Households receiving SNAP | 0.0%±3.1 pts | 0.8% |
| Households with a computer | 97.8%±2.1 pts | 98.1% |
| Households with a broadband subscription | 94.7%±3.9 pts | 96.3% |
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 4122?
Owners occupy 87.5% of Census Tract 4122's occupied homes and renters 12.5%. The median owner-occupied home is valued at $1,031,700 by its owner (±$99,795). The median renter pays $2,323 a month including utilities, and 68.0% of renters pay 35% or more of their income on rent.
| Measure | Tract 4122 | Westwood |
|---|---|---|
| Median home value (owner-occupied) | $1,031,700±$99,795 | $1,041,500 |
| Median gross rent | $2,323±$91 | $2,553 |
| Renters paying 35% or more of income on rent | 68.0%±19.5 pts | 53.9% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 87.5%±5.5 pts | 87.3% |
| Renter-occupied homes | 12.5%±5.5 pts | 12.7% |
| Housing units | 1,513±200 | 5,796 |
| Single-family detached homes | 64.9%±6.8 pts | 78.8% |
| Mobile homes | 0.0%±2.8 pts | 0.1% |
| Built 2020 or later | 0.0%±2.8 pts | 0.8% |
| Built 2010 to 2019 | 3.1%±2.4 pts | 10.0% |
| Built 1939 or earlier | 16.0%±10.0 pts | 16.9% |
| Households with no vehicle | 8.8%±4.1 pts | 4.0% |
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 4122 get to work?
67.6% of Census Tract 4122's workers drive alone and 16.4% work from home. The average trip to work takes 28.8 minutes.
| Measure | Tract 4122 | Westwood |
|---|---|---|
| In the labor force (age 16+) | 53.0%±10.0 pts | 63.3% |
| Unemployment rate | 2.6%±2.2 pts | 1.9% |
| Drove alone to work | 67.6%±12.6 pts | 59.5% |
| Carpooled | 6.3%±6.8 pts | 9.6% |
| Public transportation | 7.8%±4.1 pts | 4.9% |
| Walked | 1.9%±3.0 pts | 0.6% |
| Worked from home | 16.4%±8.1 pts | 25.1% |
| Mean travel time to work | 28.8 min±3.0 | 30.2 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 4122 compare with the other tracts in Norfolk County?
Among Norfolk County's tracts with a reliable estimate, Census Tract 4122 ranks as shown below (1 = highest).
| Measure | In Norfolk County |
|---|---|
| Population | 119th of 153 |
| Residents per square mile | 133rd of 154 |
| Median household income | 25th of 152 |
| Per capita income | 22nd of 153 |
| Median home value | 29th of 153 |
| Median gross rent | 51st of 130 |
| Poverty rate | 78th of 89 |
| Bachelor's degree or higher | 60th of 153 |
| Median age | 5th of 153 |
| Owner-occupied share | 35th of 153 |
The tracts next to it on Norfolk County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4153 | 22nd | $203,068±$41,764 · within the margin of this tract |
| Tract 4011 | 23rd | $202,169±$25,889 · within the margin of this tract |
| Tract 4572 | 24th | $201,167±$45,110 · within the margin of this tract |
| Tract 4122 | 25th | $200,921±$58,946 |
| Tract 4163 | 26th | $194,957±$34,956 · within the margin of this tract |
| Tract 4412.02 | 27th | $192,941±$21,254 · within the margin of this tract |
| Tract 4003 | 28th | $190,667±$32,171 · 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 4122?
2 of the 18 figures for Census Tract 4122 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