Census tract · Nassau County
Census Tract 4139, Nassau County, New York
Census Tract 4139, GEOID 36059413900, in Nassau County, New York, entirely within Roosevelt and Hempstead (town). 8,548 residents in the ACS 2020-2024 5-year estimates (±1,265); the 2020 Census counted 8,495.
Residents, 2020-2024
8,548
±1,265 (90% margin)
2020 Census count: 8,495
Median household income
$139,342
±$22,815 (90% margin)
Nassau County: $146,202
Median home value
$477,100
±$33,211 (90% margin)
Nassau County: $684,700
Median gross rent
$2,189
±$1,087 (90% margin)
Nassau County: $2,252
Where is Census Tract 4139?
Census Tract 4139 is one of 286 census tracts in Nassau County, New York. It covers 0.70 square miles of land, 12,067 residents per square mile in 2020. Its GEOID, 36059413900, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Roosevelt | 100% |
| Hempstead (town) | 100% |
6 census tracts border Census Tract 4139: Tract 4075.02 ($116,534), Tract 4129 ($156,900), Tract 4135 ($142,349), Tract 4140.01 ($88,235), Tract 4140.02 ($142,974) and Tract 4141 ($138,315). 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 4139?
The 2020-2024 American Community Survey puts Census Tract 4139's population at 8,548 (±1,265) in 1,944 households; the 2020 Census counted 8,495 residents and 2,094 housing units.
| Measure | Tract 4139 | Roosevelt |
|---|---|---|
| Total population | 8,548 ±1,265 | 18,885 |
| Households | 1,944 ±179 | 4,453 |
| Average household size | 4.35 ±0.46 | 4.20 |
| Housing units | 1,990 ±171 | 4,575 |
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 4139?
The median resident of Census Tract 4139 is 33.8 years old; 27.0% are under 18 and 10.5% are 65 or older. The largest group is non-Hispanic Black residents at 63.7%, then Hispanic or Latino residents (of any race) at 27.0%. 38.5% of residents were born outside the United States.
| Measure | Tract 4139 | Roosevelt |
|---|---|---|
| Median age | 33.8 ±2.9 | 35.7 |
| Under 18 years | 27.0% ±4.7 pts | 24.9% |
| 65 years and over | 10.5% ±2.1 pts | 10.4% |
| Hispanic or Latino (any race) | 27.0% ±10.1 pts | 40.2% |
| White alone, not Hispanic | 2.4% ±1.6 pts | 1.5% |
| Black or African American alone, not Hispanic | 63.7% ±10.3 pts | 51.6% |
| Asian alone, not Hispanic | 2.5% ±3.9 pts | 1.5% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Two or more races, not Hispanic | 4.3% ±4.4 pts | 4.7% |
| Some other race alone, not Hispanic | 0.2% ±0.3 pts | 0.6% |
| Born outside the United States | 38.5% ±7.9 pts | 38.5% |
| Speak a language other than English at home (age 5+) | 41.7% ±10.1 pts | 43.3% |
| Civilian veterans (age 18+) | 0.1% ±0.1 pts | 1.6% |
| With a disability | 6.6% ±2.4 pts | 7.6% |
| No health insurance coverage | 4.2% ±2.3 pts | 4.8% |
| High school graduate or higher (age 25+) | 88.2% ±4.4 pts | 83.9% |
| Bachelor's degree or higher (age 25+) | 34.9% ±5.2 pts | 28.7% |
| Graduate or professional degree (age 25+) | 12.9% ±4.1 pts | 8.4% |
| Lived in the same house a year earlier | 89.8% ±4.9 pts | 92.0% |
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 4139 earn?
Half of the 1,944 households in Census Tract 4139 earn less than $139,342 a year (±$22,815), against $146,202 across Nassau County: 176th highest of the county's 278 tracts with a reliable estimate. 1.5% of residents live below the poverty line.
| Measure | Tract 4139 | Roosevelt |
|---|---|---|
| Median household income | $139,342 ±$22,815 | $135,069 |
| Mean household income | $176,572 ±$27,438 | $155,390 |
| Per capita income | $42,174 ±$5,900 | $37,478 |
| People below the poverty line | 1.5% ±0.7 pts | 3.8% |
| Children under 18 below the poverty line | 0.0% ±1.9 pts | 2.0% |
| Households receiving SNAP | 14.4% ±7.9 pts | 11.7% |
| Households with a computer | 97.6% ±2.6 pts | 98.5% |
| Households with a broadband subscription | 94.3% ±4.6 pts | 94.9% |
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 4139?
Owners occupy 80.1% of Census Tract 4139's occupied homes and renters 19.9%. The median owner-occupied home is valued at $477,100 by its owner (±$33,211). The median renter pays $2,189 a month including utilities.
| Measure | Tract 4139 | Roosevelt |
|---|---|---|
| Median home value (owner-occupied) | $477,100 ±$33,211 | $477,400 |
| Median gross rent | $2,189 ±$1,087 | $2,565 |
| Renters paying 35% or more of income on rent | 30.2% ±26.9 pts | 59.5% |
| Median monthly owner costs, with a mortgage | $3,163 ±$399 | $2,941 |
| Owner-occupied homes | 80.1% ±8.2 pts | 76.6% |
| Renter-occupied homes | 19.9% ±8.2 pts | 23.4% |
| Housing units | 1,990 ±171 | 4,575 |
| Single-family detached homes | 77.0% ±9.9 pts | 81.4% |
| Mobile homes | 0.0% ±2.1 pts | 0.0% |
| Built 2020 or later | 2.3% ±3.4 pts | 1.0% |
| Built 2010 to 2019 | 0.0% ±2.1 pts | 3.3% |
| Built 1939 or earlier | 26.9% ±9.6 pts | 30.4% |
| Households with no vehicle | 8.2% ±5.9 pts | 6.3% |
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 4139 get to work?
53.0% of Census Tract 4139's workers drive alone and 15.8% work from home. The average trip to work takes 42.2 minutes. The unemployment rate in 2020-2024 averaged 6.1%.
| Measure | Tract 4139 | Roosevelt |
|---|---|---|
| In the labor force (age 16+) | 78.0% ±5.0 pts | 74.2% |
| Unemployment rate | 6.1% ±3.4 pts | 5.8% |
| Drove alone to work | 53.0% ±11.6 pts | 56.4% |
| Carpooled | 10.8% ±5.8 pts | 11.4% |
| Public transportation | 14.6% ±7.6 pts | 13.5% |
| Walked | 3.9% ±3.5 pts | 3.7% |
| Worked from home | 15.8% ±7.3 pts | 12.8% |
| Mean travel time to work | 42.2 min ±5.4 | 38.1 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 4139 compare with the other tracts in Nassau County?
Among Nassau County's tracts with a reliable estimate, Census Tract 4139 ranks as shown below (1 = highest).
| Measure | In Nassau County | In Roosevelt |
|---|---|---|
| Population | 3rd of 281 | 1st of 3 |
| Residents per square mile | 39th of 281 | 1st of 3 |
| Median household income | 176th of 278 | 2nd of 3 |
| Per capita income | 247th of 280 | 1st of 3 |
| Median home value | 264th of 278 | 2nd of 3 |
| Median gross rent | 137th of 205 | 1st of 2 |
| Poverty rate | 103rd of 107 | 2nd of 2 |
| Bachelor's degree or higher | 232nd of 278 | 1st of 3 |
| Median age | 267th of 281 | 3rd of 3 |
| Owner-occupied share | 194th of 276 | 1st of 3 |
The tracts next to it on Nassau County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 5205.02 | 173rd | $140,625±$15,389 · within the margin of this tract |
| Tract 5170 | 174th | $140,599±$20,791 · within the margin of this tract |
| Tract 3013 | 175th | $139,656±$35,926 · within the margin of this tract |
| Tract 4139 | 176th | $139,342±$22,815 |
| Tract 5199 | 177th | $138,860±$9,399 · within the margin of this tract |
| Tract 5176 | 178th | $138,465±$21,610 · within the margin of this tract |
| Tract 4141 | 179th | $138,315±$33,901 · 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 4139?
2 of the 18 figures for Census Tract 4139 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