Census tract · Delaware County
Census Tract 4004.01, Delaware County, Pennsylvania
Census Tract 4004.01, GEOID 42045400401, in Delaware County, Pennsylvania, entirely within Upper Darby Township. 6,471 residents in the ACS 2020-2024 5-year estimates (±734); the 2020 Census counted 5,504.
Residents, 2020-2024
6,471
±734 (90% margin)
2020 Census count: 5,504
Median household income
$50,890
±$8,379 (90% margin)
Delaware County: $89,546
Median home value
$169,100
±$14,667 (90% margin)
Delaware County: $332,200
Median gross rent
$1,295
±$74 (90% margin)
Delaware County: $1,372
Where is Census Tract 4004.01?
Census Tract 4004.01 is one of 152 census tracts in Delaware County, Pennsylvania. It covers 0.20 square miles of land, 27,520 residents per square mile in 2020. Its GEOID, 42045400401, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Upper Darby Township | 100% |
5 census tracts border Census Tract 4004.01: Tract 4003.01 ($49,959), Tract 4004.02 ($62,573), Tract 4005 ($49,435), Tract 4008.01 ($50,152) and Tract 4105 ($63,355). 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 4004.01?
The 2020-2024 American Community Survey puts Census Tract 4004.01's population at 6,471 (±734) in 2,248 households; the 2020 Census counted 5,504 residents and 2,063 housing units.
| Measure | Tract 4004.01 | Upper Darby Township |
|---|---|---|
| Total population | 6,471 ±734 | 85,486 |
| Households | 2,248 ±348 | 33,208 |
| Average household size | 2.88 ±0.36 | 2.57 |
| Housing units | 2,397 ±344 | 35,306 |
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 4004.01?
The median resident of Census Tract 4004.01 is 31.0 years old; 31.0% are under 18 and 7.0% are 65 or older. The largest group is non-Hispanic Black residents at 43.9%, then non-Hispanic Asian residents at 24.4%. 43.5% of residents were born outside the United States.
| Measure | Tract 4004.01 | Upper Darby Township |
|---|---|---|
| Median age | 31.0 ±3.5 | 35.7 |
| Under 18 years | 31.0% ±5.5 pts | 23.2% |
| 65 years and over | 7.0% ±2.5 pts | 13.0% |
| Hispanic or Latino (any race) | 22.2% ±9.5 pts | 9.9% |
| White alone, not Hispanic | 8.4% ±5.0 pts | 39.0% |
| Black or African American alone, not Hispanic | 43.9% ±9.7 pts | 33.7% |
| Asian alone, not Hispanic | 24.4% ±5.7 pts | 12.5% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Two or more races, not Hispanic | 0.6% ±0.7 pts | 4.2% |
| Some other race alone, not Hispanic | 0.5% ±0.8 pts | 0.6% |
| Born outside the United States | 43.5% ±7.7 pts | 23.5% |
| Speak a language other than English at home (age 5+) | 47.5% ±8.8 pts | 27.5% |
| Civilian veterans (age 18+) | 0.0% ±0.1 pts | 3.4% |
| With a disability | 15.0% ±4.7 pts | 13.2% |
| No health insurance coverage | 23.4% ±7.9 pts | 8.8% |
| High school graduate or higher (age 25+) | 83.8% ±4.9 pts | 90.5% |
| Bachelor's degree or higher (age 25+) | 20.1% ±5.7 pts | 33.0% |
| Graduate or professional degree (age 25+) | 4.4% ±3.5 pts | 11.8% |
| Lived in the same house a year earlier | 84.2% ±9.1 pts | 89.9% |
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 4004.01 earn?
Half of the 2,248 households in Census Tract 4004.01 earn less than $50,890 a year (±$8,379), against $89,546 across Delaware County: 126th highest of the county's 147 tracts with a reliable estimate. 31.5% of residents live below the poverty line.
| Measure | Tract 4004.01 | Upper Darby Township |
|---|---|---|
| Median household income | $50,890 ±$8,379 | $71,481 |
| Mean household income | $71,859 ±$14,428 | $93,573 |
| Per capita income | $25,545 ±$5,179 | $36,993 |
| People below the poverty line | 31.5% ±9.1 pts | 14.4% |
| Children under 18 below the poverty line | 48.6% ±16.2 pts | 21.5% |
| Households receiving SNAP | 30.2% ±8.1 pts | 17.3% |
| Households with a computer | 98.0% ±2.3 pts | 97.1% |
| Households with a broadband subscription | 79.0% ±8.9 pts | 91.5% |
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 4004.01?
Owners occupy 44.4% of Census Tract 4004.01's occupied homes and renters 55.6%. The median owner-occupied home is valued at $169,100 by its owner (±$14,667). The median renter pays $1,295 a month including utilities, and 44.5% of renters pay 35% or more of their income on rent.
| Measure | Tract 4004.01 | Upper Darby Township |
|---|---|---|
| Median home value (owner-occupied) | $169,100 ±$14,667 | $219,100 |
| Median gross rent | $1,295 ±$74 | $1,328 |
| Renters paying 35% or more of income on rent | 44.5% ±13.0 pts | 43.6% |
| Median monthly owner costs, with a mortgage | $1,606 ±$142 | $1,846 |
| Owner-occupied homes | 44.4% ±9.0 pts | 57.5% |
| Renter-occupied homes | 55.6% ±9.0 pts | 42.5% |
| Housing units | 2,397 ±344 | 35,306 |
| Single-family detached homes | 3.2% ±2.5 pts | 22.0% |
| Mobile homes | 0.0% ±1.3 pts | 0.0% |
| Built 2020 or later | 0.0% ±1.3 pts | 0.0% |
| Built 2010 to 2019 | 6.1% ±4.1 pts | 1.1% |
| Built 1939 or earlier | 33.0% ±9.2 pts | 33.4% |
| Households with no vehicle | 30.5% ±8.1 pts | 14.1% |
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 4004.01 get to work?
56.7% of Census Tract 4004.01's workers drive alone. The average trip to work takes 31.7 minutes. The unemployment rate in 2020-2024 averaged 7.8%.
| Measure | Tract 4004.01 | Upper Darby Township |
|---|---|---|
| In the labor force (age 16+) | 72.9% ±4.8 pts | 71.7% |
| Unemployment rate | 7.8% ±4.2 pts | 8.9% |
| Drove alone to work | 56.7% ±9.8 pts | 60.6% |
| Carpooled | 6.9% ±3.6 pts | 7.5% |
| Public transportation | 28.4% ±9.5 pts | 12.9% |
| Walked | 2.2% ±3.0 pts | 3.0% |
| Worked from home | 1.2% ±1.2 pts | 13.4% |
| Mean travel time to work | 31.7 min ±2.5 | 31.5 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 4004.01 compare with the other tracts in Delaware County?
Among Delaware County's tracts with a reliable estimate, Census Tract 4004.01 ranks as shown below (1 = highest).
| Measure | In Delaware County |
|---|---|
| Population | 8th of 150 |
| Residents per square mile | 2nd of 152 |
| Median household income | 126th of 147 |
| Per capita income | 130th of 149 |
| Median home value | 117th of 147 |
| Median gross rent | 89th of 138 |
| Poverty rate | 8th of 80 |
| Bachelor's degree or higher | 117th of 145 |
| Median age | 139th of 150 |
| Owner-occupied share | 129th of 147 |
The tracts next to it on Delaware County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4020 | 123rd | $52,539±$12,022 · within the margin of this tract |
| Tract 4037.02 | 124th | $51,958±$5,992 · within the margin of this tract |
| Tract 4043 | 125th | $51,953±$12,914 · within the margin of this tract |
| Tract 4004.01 | 126th | $50,890±$8,379 |
| Tract 4008.01 | 127th | $50,152±$23,427 · within the margin of this tract |
| Tract 4003.01 | 128th | $49,959±$5,434 · within the margin of this tract |
| Tract 4021 | 129th | $49,659±$8,009 · 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 4004.01?
1 of the 18 figures for Census Tract 4004.01 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