Census tract · Allegheny County
Census Tract 4639, Allegheny County, Pennsylvania
Census Tract 4639, GEOID 42003463900, in Allegheny County, Pennsylvania, entirely within McKees Rocks. 3,053 residents in the ACS 2020-2024 5-year estimates (±434); the 2020 Census counted 2,712.
Residents, 2020-2024
3,053
±434 (90% margin)
2020 Census count: 2,712
Median household income
$49,696
±$15,818 (90% margin)
Allegheny County: $78,548
Median home value
$71,400
±$13,288 (90% margin)
Allegheny County: $227,600
Median gross rent
$1,177
±$141 (90% margin)
Allegheny County: $1,153
Where is Census Tract 4639?
Census Tract 4639 is one of 394 census tracts in Allegheny County, Pennsylvania. It covers 0.39 square miles of land, 6,954 residents per square mile in 2020. Its GEOID, 42003463900, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| McKees Rocks | 100% |
5 census tracts border Census Tract 4639: Tract 4600.02 ($95,964), Tract 4626 ($57,878), Tract 4644 ($26,000), Tract 5625 ($61,938) and Tract 5630 ($55,833). 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 4639?
The 2020-2024 American Community Survey puts Census Tract 4639's population at 3,053 (±434) in 1,439 households; the 2020 Census counted 2,712 residents and 1,443 housing units.
| Measure | Tract 4639 | McKees Rocks |
|---|---|---|
| Total population | 3,053±434 | 5,786 |
| Households | 1,439±274 | 2,713 |
| Average household size | 2.12±0.34 | 2.13 |
| Housing units | 1,711±262 | 3,328 |
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 4639?
The median resident of Census Tract 4639 is 43.2 years old; 19.7% are under 18 and 15.8% are 65 or older. The largest group is non-Hispanic white residents at 51.8%, then non-Hispanic Black residents at 23.9%.
| Measure | Tract 4639 | McKees Rocks |
|---|---|---|
| Median age | 43.2±9.6 | 40.9 |
| Under 18 years | 19.7%±5.4 pts | 19.2% |
| 65 years and over | 15.8%±5.1 pts | 19.1% |
| Hispanic or Latino (any race) | 10.0%±13.6 pts | 5.3% |
| White alone, not Hispanic | 51.8%±13.3 pts | 54.3% |
| Black or African American alone, not Hispanic | 23.9%±11.5 pts | 22.1% |
| Asian alone, not Hispanic | 0.4%±0.9 pts | 0.8% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.1 pts | 1.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 8.5%±5.0 pts | 10.1% |
| Some other race alone, not Hispanic | 5.5%±5.5 pts | 6.4% |
| Born outside the United States | 10.3%±13.6 pts | 6.7% |
| Speak a language other than English at home (age 5+) | 7.8%±10.2 pts | 7.1% |
| Civilian veterans (age 18+) | 9.9%±6.8 pts | 8.8% |
| With a disability | 17.0%±6.7 pts | 20.8% |
| No health insurance coverage | 17.7%±13.5 pts | 10.1% |
| High school graduate or higher (age 25+) | 95.0%±2.5 pts | 94.9% |
| Bachelor's degree or higher (age 25+) | 7.9%±4.3 pts | 9.1% |
| Graduate or professional degree (age 25+) | 4.3%±3.1 pts | 2.6% |
| Lived in the same house a year earlier | 77.9%±13.7 pts | 85.4% |
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 4639 earn?
Half of the 1,439 households in Census Tract 4639 earn less than $49,696 a year (±$15,818), against $78,548 across Allegheny County: 308th highest of the county's 374 tracts with a reliable estimate. 26.4% of residents live below the poverty line.
| Measure | Tract 4639 | McKees Rocks |
|---|---|---|
| Median household income | $49,696±$15,818 | $41,131 |
| Mean household income | $56,484±$9,411 | $49,694 |
| Per capita income | $26,067±$4,926 | $23,538 |
| People below the poverty line | 26.4%±10.4 pts | 32.1% |
| Children under 18 below the poverty line | 27.4%±23.3 pts | 36.1% |
| Households receiving SNAP | 41.3%±12.0 pts | 49.7% |
| Households with a computer | 92.2%±4.0 pts | 87.5% |
| Households with a broadband subscription | 80.0%±8.7 pts | 83.1% |
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 4639?
Owners occupy 50.4% of Census Tract 4639's occupied homes and renters 49.6%. The median owner-occupied home is valued at $71,400 by its owner (±$13,288). The median renter pays $1,177 a month including utilities, and 32.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 4639 | McKees Rocks |
|---|---|---|
| Median home value (owner-occupied) | $71,400±$13,288 | $75,600 |
| Median gross rent | $1,177±$141 | $1,081 |
| Renters paying 35% or more of income on rent | 32.7%±20.7 pts | 40.1% |
| Median monthly owner costs, with a mortgage | $1,060±$257 | $1,118 |
| Owner-occupied homes | 50.4%±12.9 pts | 41.4% |
| Renter-occupied homes | 49.6%±12.9 pts | 58.6% |
| Housing units | 1,711±262 | 3,328 |
| Single-family detached homes | 62.4%±11.6 pts | 54.9% |
| Mobile homes | 0.9%±1.6 pts | 1.5% |
| Built 2020 or later | 0.0%±1.9 pts | 0.0% |
| Built 2010 to 2019 | 0.0%±1.9 pts | 0.5% |
| Built 1939 or earlier | 46.2%±12.1 pts | 44.5% |
| Households with no vehicle | 27.4%±10.2 pts | 25.7% |
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 4639 get to work?
58.9% of Census Tract 4639's workers drive alone. The average trip to work takes 21.9 minutes.
| Measure | Tract 4639 | McKees Rocks |
|---|---|---|
| In the labor force (age 16+) | 58.9%±11.7 pts | 54.9% |
| Unemployment rate | 6.7%±6.9 pts | 10.2% |
| Drove alone to work | 58.9%±22.5 pts | 52.7% |
| Carpooled | 23.8%±26.5 pts | 24.4% |
| Public transportation | 7.8%±5.7 pts | 5.4% |
| Walked | 4.6%±4.5 pts | 6.7% |
| Worked from home | 3.5%±3.6 pts | 9.9% |
| Mean travel time to work | 21.9 min±8.5 | 19.4 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 4639 compare with the other tracts in Allegheny County?
Among Allegheny County's tracts with a reliable estimate, Census Tract 4639 ranks as shown below (1 = highest).
| Measure | In Allegheny County |
|---|---|
| Population | 185th of 384 |
| Residents per square mile | 81st of 394 |
| Median household income | 308th of 374 |
| Per capita income | 341st of 383 |
| Median home value | 349th of 368 |
| Median gross rent | 167th of 356 |
| Poverty rate | 51st of 272 |
| Bachelor's degree or higher | 369th of 372 |
| Median age | 158th of 383 |
| Owner-occupied share | 272nd of 374 |
The tracts next to it on Allegheny County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1302 | 305th | $50,605±$5,085 · within the margin of this tract |
| Tract 4020 | 306th | $50,197±$14,075 · within the margin of this tract |
| Tract 4993 | 307th | $49,813±$10,655 · within the margin of this tract |
| Tract 4639 | 308th | $49,696±$15,818 |
| Tract 2509 | 309th | $49,500±$26,230 · within the margin of this tract |
| Tract 5522 | 310th | $49,063±$12,095 · within the margin of this tract |
| Tract 5240 | 311th | $48,733±$17,421 · 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 4639?
3 of the 18 figures for Census Tract 4639 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