Census tract · Suffolk County
Census Tract 1604, Suffolk County, Massachusetts
Census Tract 1604, GEOID 25025160400, in Suffolk County, Massachusetts, entirely within Chelsea. 3,614 residents in the ACS 2020-2024 5-year estimates (±515); the 2020 Census counted 3,878.
Residents, 2020-2024
3,614
±515 (90% margin)
2020 Census count: 3,878
Median household income
$72,711
±$13,912 (90% margin)
Suffolk County: $95,631
Median home value
$644,100
±$111,327 (90% margin)
Suffolk County: $705,800
Median gross rent
$1,926
±$213 (90% margin)
Suffolk County: $2,129
Where is Census Tract 1604?
Census Tract 1604 is one of 235 census tracts in Suffolk County, Massachusetts. It covers 0.50 square miles of land, 7,725 residents per square mile in 2020. Its GEOID, 25025160400, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Chelsea | 100% |
6 census tracts border Census Tract 1604: Tract 3424.02 in Middlesex County ($99,539), Tract 1601.02 ($78,664), Tract 1602 ($76,067), Tract 1603 ($77,750), Tract 1605.01 ($53,168) and Tract 1606.02 ($70,800). 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 1604?
The 2020-2024 American Community Survey puts Census Tract 1604's population at 3,614 (±515) in 1,544 households; the 2020 Census counted 3,878 residents and 1,606 housing units.
| Measure | Tract 1604 | Chelsea |
|---|---|---|
| Total population | 3,614±515 | 39,908 |
| Households | 1,544±181 | 13,716 |
| Average household size | 2.34±0.31 | 2.85 |
| Housing units | 1,642±179 | 14,165 |
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 1604?
The median resident of Census Tract 1604 is 33.2 years old; 23.0% are under 18 and 6.1% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 62.2%, then non-Hispanic white residents at 22.8%. 53.2% of residents were born outside the United States.
| Measure | Tract 1604 | Chelsea |
|---|---|---|
| Median age | 33.2±4.3 | 34.4 |
| Under 18 years | 23.0%±6.7 pts | 24.4% |
| 65 years and over | 6.1%±2.6 pts | 10.5% |
| Hispanic or Latino (any race) | 62.2%±10.9 pts | 67.3% |
| White alone, not Hispanic | 22.8%±6.9 pts | 17.7% |
| Black or African American alone, not Hispanic | 3.9%±4.7 pts | 7.1% |
| Asian alone, not Hispanic | 3.8%±2.3 pts | 2.1% |
| 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 | 6.8%±5.0 pts | 4.9% |
| Some other race alone, not Hispanic | 0.5%±0.7 pts | 1.0% |
| Born outside the United States | 53.2%±7.6 pts | 46.1% |
| Speak a language other than English at home (age 5+) | 71.1%±8.1 pts | 70.6% |
| Civilian veterans (age 18+) | 0.8%±0.9 pts | 1.6% |
| With a disability | 9.7%±3.2 pts | 14.4% |
| No health insurance coverage | 7.7%±7.6 pts | 3.4% |
| High school graduate or higher (age 25+) | 76.6%±8.0 pts | 70.3% |
| Bachelor's degree or higher (age 25+) | 36.2%±7.6 pts | 22.2% |
| Graduate or professional degree (age 25+) | 11.9%±5.2 pts | 7.9% |
| Lived in the same house a year earlier | 74.9%±10.0 pts | 87.1% |
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 1604 earn?
Half of the 1,544 households in Census Tract 1604 earn less than $72,711 a year (±$13,912), against $95,631 across Suffolk County: 151st highest of the county's 209 tracts with a reliable estimate. 24.3% of residents live below the poverty line.
| Measure | Tract 1604 | Chelsea |
|---|---|---|
| Median household income | $72,711±$13,912 | $72,179 |
| Mean household income | $100,921±$22,179 | $92,358 |
| Per capita income | $43,090±$10,010 | $32,986 |
| People below the poverty line | 24.3%±9.9 pts | 20.7% |
| Children under 18 below the poverty line | 32.7%±24.1 pts | 25.4% |
| Households receiving SNAP | 11.5%±7.1 pts | 26.3% |
| Households with a computer | 93.5%±5.6 pts | 93.3% |
| Households with a broadband subscription | 89.6%±6.8 pts | 86.6% |
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 1604?
Owners occupy 6.7% of Census Tract 1604's occupied homes and renters 93.3%. The median owner-occupied home is valued at $644,100 by its owner (±$111,327). The median renter pays $1,926 a month including utilities, and 48.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 1604 | Chelsea |
|---|---|---|
| Median home value (owner-occupied) | $644,100±$111,327 | $493,500 |
| Median gross rent | $1,926±$213 | $1,956 |
| Renters paying 35% or more of income on rent | 48.4%±11.2 pts | 49.4% |
| Median monthly owner costs, with a mortgage | $1,958±$815 | $2,608 |
| Owner-occupied homes | 6.7%±4.0 pts | 26.0% |
| Renter-occupied homes | 93.3%±4.0 pts | 74.0% |
| Housing units | 1,642±179 | 14,165 |
| Single-family detached homes | 2.7%±3.0 pts | 8.4% |
| Mobile homes | 0.0%±2.6 pts | 0.1% |
| Built 2020 or later | 2.6%±4.2 pts | 0.8% |
| Built 2010 to 2019 | 32.8%±7.7 pts | 9.8% |
| Built 1939 or earlier | 48.6%±9.5 pts | 49.6% |
| Households with no vehicle | 34.7%±9.4 pts | 28.4% |
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 1604 get to work?
44.5% of Census Tract 1604's workers drive alone and 14.7% work from home. The average trip to work takes 27.8 minutes.
| Measure | Tract 1604 | Chelsea |
|---|---|---|
| In the labor force (age 16+) | 70.7%±5.8 pts | 68.2% |
| Unemployment rate | 4.3%±3.7 pts | 9.2% |
| Drove alone to work | 44.5%±7.8 pts | 46.1% |
| Carpooled | 9.3%±5.4 pts | 13.8% |
| Public transportation | 17.1%±6.7 pts | 20.9% |
| Walked | 11.1%±7.2 pts | 5.3% |
| Worked from home | 14.7%±5.9 pts | 10.4% |
| Mean travel time to work | 27.8 min±3.5 | 32.9 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 1604 compare with the other tracts in Suffolk County?
Among Suffolk County's tracts with a reliable estimate, Census Tract 1604 ranks as shown below (1 = highest).
| Measure | In Suffolk County | In Chelsea |
|---|---|---|
| Population | 100th of 224 | 8th of 9 |
| Residents per square mile | 202nd of 234 | 9th of 9 |
| Median household income | 151st of 209 | 6th of 9 |
| Per capita income | 141st of 221 | 2nd of 9 |
| Median home value | 119th of 198 | 1st of 9 |
| Median gross rent | 144th of 210 | 4th of 8 |
| Poverty rate | 57th of 181 | 3rd of 8 |
| Bachelor's degree or higher | 151st of 218 | 2nd of 9 |
| Median age | 134th of 225 | 5th of 9 |
| Owner-occupied share | 198th of 200 | 9th of 9 |
The tracts next to it on Suffolk County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 801 | 148th | $73,400±$24,294 · within the margin of this tract |
| Tract 904 | 149th | $73,263±$20,850 · within the margin of this tract |
| Tract 1708 | 150th | $73,074±$12,423 · within the margin of this tract |
| Tract 1604 | 151st | $72,711±$13,912 |
| Tract 1704 | 152nd | $72,674±$20,167 · within the margin of this tract |
| Tract 918 | 153rd | $72,597±$25,460 · within the margin of this tract |
| Tract 815 | 154th | $72,365±$10,222 · 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 1604?
1 of the 18 figures for Census Tract 1604 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