Census tract · Essex County
Census Tract 2521.01, Essex County, Massachusetts
Census Tract 2521.01, GEOID 25009252101, in Essex County, Massachusetts, outside any city, town or census-designated place. 3,570 residents in the ACS 2020-2024 5-year estimates (±598); the 2020 Census counted 4,114.
Residents, 2020-2024
3,570
±598 (90% margin)
2020 Census count: 4,114
Median household income
$81,894
±$25,407 (90% margin)
Essex County: $101,883
Median home value
$430,100
±$18,866 (90% margin)
Essex County: $619,100
Median gross rent
$1,738
±$342 (90% margin)
Essex County: $1,756
Where is Census Tract 2521.01?
Census Tract 2521.01 is one of 174 census tracts in Essex County, Massachusetts. It covers 0.70 square miles of land, 5,919 residents per square mile in 2020. Its GEOID, 25009252101, names it uniquely (how tract numbers and GEOIDs work).
6 census tracts border Census Tract 2521.01: Tract 2502 ($81,449), Tract 2514 ($62,455), Tract 2521.02 ($134,776), Tract 2522.01 ($102,067), Tract 2523 ($76,667) and Tract 2544.02 ($174,185). 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 2521.01?
The 2020-2024 American Community Survey puts Census Tract 2521.01's population at 3,570 (±598) in 1,400 households; the 2020 Census counted 4,114 residents and 1,586 housing units.
| Measure | Tract 2521.01 | Essex County |
|---|---|---|
| Total population | 3,570±598 | 813,054 |
| Households | 1,400±161 | 313,147 |
| Average household size | 2.50±0.23 | 2.54 |
| Housing units | 1,400±161 | 329,776 |
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 2521.01?
The median resident of Census Tract 2521.01 is 41.1 years old; 21.6% are under 18 and 18.3% are 65 or older. The largest group is non-Hispanic white residents at 57.5%, then Hispanic or Latino residents (of any race) at 31.7%. 27.3% of residents were born outside the United States.
| Measure | Tract 2521.01 | Essex County |
|---|---|---|
| Median age | 41.1±4.5 | 41.2 |
| Under 18 years | 21.6%±3.5 pts | 20.8% |
| 65 years and over | 18.3%±5.3 pts | 18.5% |
| Hispanic or Latino (any race) | 31.7%±13.3 pts | 24.1% |
| White alone, not Hispanic | 57.5%±14.3 pts | 64.5% |
| Black or African American alone, not Hispanic | 5.1%±5.8 pts | 3.5% |
| Asian alone, not Hispanic | 1.3%±1.4 pts | 3.5% |
| 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 | 1.8%±1.4 pts | 3.5% |
| Some other race alone, not Hispanic | 2.7%±2.8 pts | 0.8% |
| Born outside the United States | 27.3%±12.3 pts | 19.1% |
| Speak a language other than English at home (age 5+) | 39.5%±14.3 pts | 28.7% |
| Civilian veterans (age 18+) | 5.4%±3.0 pts | 4.3% |
| With a disability | 17.1%±6.2 pts | 12.3% |
| No health insurance coverage | 6.7%±5.0 pts | 2.8% |
| High school graduate or higher (age 25+) | 87.9%±4.5 pts | 90.1% |
| Bachelor's degree or higher (age 25+) | 21.9%±5.5 pts | 43.0% |
| Graduate or professional degree (age 25+) | 6.7%±3.9 pts | 17.9% |
| Lived in the same house a year earlier | 86.8%±10.9 pts | 90.8% |
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 2521.01 earn?
Half of the 1,400 households in Census Tract 2521.01 earn less than $81,894 a year (±$25,407), against $101,883 across Essex County: 127th highest of the county's 170 tracts with a reliable estimate. 9.8% of residents live below the poverty line.
| Measure | Tract 2521.01 | Essex County |
|---|---|---|
| Median household income | $81,894±$25,407 | $101,883 |
| Mean household income | $93,474±$14,670 | $140,098 |
| Per capita income | $37,393±$4,239 | $54,665 |
| People below the poverty line | 9.8%±4.0 pts | 9.4% |
| Children under 18 below the poverty line | 4.8%±7.2 pts | 11.9% |
| Households receiving SNAP | 23.8%±8.7 pts | 16.6% |
| Households with a computer | 89.4%±5.0 pts | 95.2% |
| Households with a broadband subscription | 90.4%±5.2 pts | 92.4% |
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 2521.01?
Owners occupy 64.8% of Census Tract 2521.01's occupied homes and renters 35.2%. The median owner-occupied home is valued at $430,100 by its owner (±$18,866). The median renter pays $1,738 a month including utilities, and 44.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 2521.01 | Essex County |
|---|---|---|
| Median home value (owner-occupied) | $430,100±$18,866 | $619,100 |
| Median gross rent | $1,738±$342 | $1,756 |
| Renters paying 35% or more of income on rent | 44.1%±18.9 pts | 46.4% |
| Median monthly owner costs, with a mortgage | $2,044±$256 | $2,867 |
| Owner-occupied homes | 64.8%±11.0 pts | 63.5% |
| Renter-occupied homes | 35.2%±11.0 pts | 36.5% |
| Housing units | 1,400±161 | 329,776 |
| Single-family detached homes | 52.0%±10.8 pts | 49.6% |
| Mobile homes | 0.0%±3.0 pts | 0.4% |
| Built 2020 or later | 0.0%±3.0 pts | 0.7% |
| Built 2010 to 2019 | 0.0%±3.0 pts | 5.2% |
| Built 1939 or earlier | 23.1%±7.7 pts | 34.6% |
| Households with no vehicle | 10.4%±5.1 pts | 9.3% |
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 2521.01 get to work?
62.7% of Census Tract 2521.01's workers drive alone. The average trip to work takes 24.3 minutes.
| Measure | Tract 2521.01 | Essex County |
|---|---|---|
| In the labor force (age 16+) | 67.9%±7.3 pts | 67.5% |
| Unemployment rate | 5.8%±4.8 pts | 5.1% |
| Drove alone to work | 62.7%±12.6 pts | 67.6% |
| Carpooled | 19.9%±10.8 pts | 7.3% |
| Public transportation | 0.6%±1.0 pts | 3.5% |
| Walked | 0.0%±2.3 pts | 2.7% |
| Worked from home | 11.7%±9.2 pts | 16.4% |
| Mean travel time to work | 24.3 min±2.9 | 28.5 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 2521.01 compare with the other tracts in Essex County?
Among Essex County's tracts with a reliable estimate, Census Tract 2521.01 ranks as shown below (1 = highest).
| Measure | In Essex County |
|---|---|
| Population | 134th of 173 |
| Residents per square mile | 62nd of 173 |
| Median household income | 127th of 170 |
| Per capita income | 132nd of 173 |
| Median home value | 154th of 170 |
| Median gross rent | 87th of 154 |
| Poverty rate | 53rd of 113 |
| Bachelor's degree or higher | 143rd of 170 |
| Median age | 95th of 173 |
| Owner-occupied share | 99th of 168 |
The tracts next to it on Essex County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2109 | 124th | $82,299±$13,391 · within the margin of this tract |
| Tract 2059 | 125th | $82,105±$34,109 · within the margin of this tract |
| Tract 2664 | 126th | $81,964±$16,370 · within the margin of this tract |
| Tract 2521.01 | 127th | $81,894±$25,407 |
| Tract 2502 | 128th | $81,449±$36,415 · within the margin of this tract |
| Tract 2532.02 | 129th | $80,880±$17,647 · within the margin of this tract |
| Tract 2047.02 | 130th | $80,750±$20,074 · 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 2521.01?
3 of the 18 figures for Census Tract 2521.01 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