Census tract · Suffolk County
Census Tract 921.01, Suffolk County, Massachusetts
Census Tract 921.01, GEOID 25025092101, in Suffolk County, Massachusetts, entirely within Boston. 6,222 residents in the ACS 2020-2024 5-year estimates (±862); the 2020 Census counted 6,921.
Residents, 2020-2024
6,222
±862 (90% margin)
2020 Census count: 6,921
Median household income
$66,210
±$13,392 (90% margin)
Suffolk County: $95,631
Median home value
$686,400
±$85,419 (90% margin)
Suffolk County: $705,800
Median gross rent
$2,256
±$254 (90% margin)
Suffolk County: $2,129
Where is Census Tract 921.01?
Census Tract 921.01 is one of 235 census tracts in Suffolk County, Massachusetts. It covers 0.50 square miles of land, 13,732 residents per square mile in 2020. Its GEOID, 25025092101, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Boston | 100% |
7 census tracts border Census Tract 921.01: Tract 910.01 ($103,676), Tract 916 ($51,029), Tract 920 ($60,090), Tract 922 ($116,818), Tract 1005 ($68,858), Tract 1006.01 ($116,907) and Tract 1006.03 ($144,177). 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 921.01?
The 2020-2024 American Community Survey puts Census Tract 921.01's population at 6,222 (±862) in 2,767 households; the 2020 Census counted 6,921 residents and 2,592 housing units.
| Measure | Tract 921.01 | Boston |
|---|---|---|
| Total population | 6,222 ±862 | 666,442 |
| Households | 2,767 ±438 | 283,374 |
| Average household size | 2.17 ±0.26 | 2.19 |
| Housing units | 3,013 ±400 | 310,625 |
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 921.01?
The median resident of Census Tract 921.01 is 49.8 years old; 8.7% are under 18 and 26.7% are 65 or older. The largest group is non-Hispanic white residents at 34.7%, then non-Hispanic Black residents at 23.5%. 35.9% of residents were born outside the United States.
| Measure | Tract 921.01 | Boston |
|---|---|---|
| Median age | 49.8 ±4.6 | 33.3 |
| Under 18 years | 8.7% ±4.3 pts | 15.1% |
| 65 years and over | 26.7% ±5.6 pts | 13.0% |
| Hispanic or Latino (any race) | 20.1% ±6.5 pts | 19.3% |
| White alone, not Hispanic | 34.7% ±8.2 pts | 44.1% |
| Black or African American alone, not Hispanic | 23.5% ±9.1 pts | 19.3% |
| Asian alone, not Hispanic | 21.6% ±7.0 pts | 10.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 0.1% ±0.3 pts | 5.9% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 1.0% |
| Born outside the United States | 35.9% ±9.0 pts | 27.8% |
| Speak a language other than English at home (age 5+) | 42.9% ±9.3 pts | 35.6% |
| Civilian veterans (age 18+) | 0.9% ±1.0 pts | 2.1% |
| With a disability | 16.1% ±5.7 pts | 12.4% |
| No health insurance coverage | 5.3% ±3.0 pts | 2.9% |
| High school graduate or higher (age 25+) | 75.9% ±7.6 pts | 88.9% |
| Bachelor's degree or higher (age 25+) | 35.3% ±7.9 pts | 54.9% |
| Graduate or professional degree (age 25+) | 14.7% ±5.9 pts | 26.1% |
| Lived in the same house a year earlier | 84.6% ±7.0 pts | 80.3% |
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 921.01 earn?
Half of the 2,767 households in Census Tract 921.01 earn less than $66,210 a year (±$13,392), against $95,631 across Suffolk County: 169th highest of the county's 209 tracts with a reliable estimate. 11.5% of residents live below the poverty line.
| Measure | Tract 921.01 | Boston |
|---|---|---|
| Median household income | $66,210 ±$13,392 | $97,344 |
| Mean household income | $90,584 ±$15,918 | $143,767 |
| Per capita income | $39,441 ±$5,466 | $61,698 |
| People below the poverty line | 11.5% ±4.1 pts | 16.6% |
| Children under 18 below the poverty line | 7.9% ±12.8 pts | 21.1% |
| Households receiving SNAP | 14.0% ±6.6 pts | 19.5% |
| Households with a computer | 90.6% ±7.3 pts | 95.6% |
| Households with a broadband subscription | 91.3% ±6.6 pts | 92.0% |
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 921.01?
Owners occupy 51.0% of Census Tract 921.01's occupied homes and renters 49.0%. The median owner-occupied home is valued at $686,400 by its owner (±$85,419). The median renter pays $2,256 a month including utilities, and 59.2% of renters pay 35% or more of their income on rent.
| Measure | Tract 921.01 | Boston |
|---|---|---|
| Median home value (owner-occupied) | $686,400 ±$85,419 | $731,700 |
| Median gross rent | $2,256 ±$254 | $2,147 |
| Renters paying 35% or more of income on rent | 59.2% ±16.6 pts | 41.3% |
| Median monthly owner costs, with a mortgage | $2,436 ±$864 | $2,986 |
| Owner-occupied homes | 51.0% ±10.1 pts | 35.7% |
| Renter-occupied homes | 49.0% ±10.1 pts | 64.3% |
| Housing units | 3,013 ±400 | 310,625 |
| Single-family detached homes | 16.3% ±7.1 pts | 11.9% |
| Mobile homes | 0.5% ±0.8 pts | 0.2% |
| Built 2020 or later | 0.5% ±0.8 pts | 1.4% |
| Built 2010 to 2019 | 8.8% ±5.3 pts | 10.0% |
| Built 1939 or earlier | 54.4% ±9.0 pts | 46.7% |
| Households with no vehicle | 26.2% ±9.5 pts | 33.3% |
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 do people in Census Tract 921.01 get to work?
40.0% of Census Tract 921.01's workers drive alone and 13.6% work from home. The average trip to work takes 38.7 minutes. The unemployment rate in 2020-2024 averaged 7.1%.
| Measure | Tract 921.01 | Boston |
|---|---|---|
| In the labor force (age 16+) | 54.4% ±7.2 pts | 70.0% |
| Unemployment rate | 7.1% ±4.6 pts | 6.1% |
| Drove alone to work | 40.0% ±9.8 pts | 32.9% |
| Carpooled | 10.8% ±4.8 pts | 5.2% |
| Public transportation | 23.1% ±8.5 pts | 22.6% |
| Walked | 4.1% ±3.0 pts | 13.4% |
| Worked from home | 13.6% ±6.3 pts | 21.3% |
| Mean travel time to work | 38.7 min ±7.5 | 30.3 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 921.01 compare with the other tracts in Suffolk County?
Among Suffolk County's tracts with a reliable estimate, Census Tract 921.01 ranks as shown below (1 = highest).
| Measure | In Suffolk County | In Boston |
|---|---|---|
| Population | 11th of 224 | 9th of 197 |
| Residents per square mile | 161st of 234 | 149th of 206 |
| Median household income | 169th of 209 | 146th of 182 |
| Per capita income | 151st of 221 | 138th of 194 |
| Median home value | 95th of 198 | 94th of 171 |
| Median gross rent | 89th of 210 | 83rd of 184 |
| Poverty rate | 127th of 181 | 114th of 161 |
| Bachelor's degree or higher | 152nd of 218 | 144th of 191 |
| Median age | 10th of 225 | 10th of 198 |
| Owner-occupied share | 51st of 200 | 42nd of 173 |
The tracts next to it on Suffolk County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 503 | 166th | $67,129±$16,030 · within the margin of this tract |
| Tract 915 | 167th | $66,875±$24,169 · within the margin of this tract |
| Tract 1102.01 | 168th | $66,607±$24,744 · within the margin of this tract |
| Tract 921.01 | 169th | $66,210±$13,392 |
| Tract 914 | 170th | $65,093±$26,010 · within the margin of this tract |
| Tract 906 | 171st | $64,432±$20,731 · within the margin of this tract |
| Tract 1605.02 | 172nd | $64,167±$12,338 · 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 921.01?
Every figure for Census Tract 921.01 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
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