Census tract · Allegheny County
Census Tract 4742.03, Allegheny County, Pennsylvania
Census Tract 4742.03, GEOID 42003474203, in Allegheny County, Pennsylvania, entirely within Upper St. Clair Township. 4,643 residents in the ACS 2020-2024 5-year estimates (±491); the 2020 Census counted 4,802.
Residents, 2020-2024
4,643
±491 (90% margin)
2020 Census count: 4,802
Median household income
$148,281
±$31,722 (90% margin)
Allegheny County: $78,548
Median home value
$380,200
±$26,235 (90% margin)
Allegheny County: $227,600
Median gross rent
not published
Allegheny County: $1,153
Where is Census Tract 4742.03?
Census Tract 4742.03 is one of 394 census tracts in Allegheny County, Pennsylvania. It covers 1.70 square miles of land, 2,821 residents per square mile in 2020. Its GEOID, 42003474203, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Upper St. Clair Township | 100% |
4 census tracts border Census Tract 4742.03: Tract 4741.02 ($201,332), Tract 4742.02 ($154,861), Tract 4752 ($117,431) and Tract 7461 in Washington County ($139,239). 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 4742.03?
The 2020-2024 American Community Survey puts Census Tract 4742.03's population at 4,643 (±491) in 1,692 households; the 2020 Census counted 4,802 residents and 1,677 housing units.
| Measure | Tract 4742.03 | Upper St. Clair Township |
|---|---|---|
| Total population | 4,643 ±491 | 20,863 |
| Households | 1,692 ±211 | 7,550 |
| Average household size | 2.74 ±0.19 | 2.75 |
| Housing units | 1,721 ±205 | 7,836 |
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 4742.03?
The median resident of Census Tract 4742.03 is 43.0 years old; 26.3% are under 18 and 20.6% are 65 or older. The largest group is non-Hispanic white residents at 89.9%, then non-Hispanic Asian residents at 5.4%. 7.1% of residents were born outside the United States.
| Measure | Tract 4742.03 | Upper St. Clair Township |
|---|---|---|
| Median age | 43.0 ±4.5 | 43.7 |
| Under 18 years | 26.3% ±4.1 pts | 25.3% |
| 65 years and over | 20.6% ±4.4 pts | 19.7% |
| Hispanic or Latino (any race) | 2.5% ±2.3 pts | 1.7% |
| White alone, not Hispanic | 89.9% ±3.8 pts | 85.6% |
| Black or African American alone, not Hispanic | 0.0% ±0.1 pts | 1.3% |
| Asian alone, not Hispanic | 5.4% ±1.8 pts | 8.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 2.1% ±2.8 pts | 3.0% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.3% |
| Born outside the United States | 7.1% ±2.3 pts | 10.1% |
| Speak a language other than English at home (age 5+) | 10.2% ±3.3 pts | 12.1% |
| Civilian veterans (age 18+) | 4.4% ±1.8 pts | 5.5% |
| With a disability | 8.6% ±3.0 pts | 9.7% |
| No health insurance coverage | 1.6% ±1.2 pts | 2.2% |
| High school graduate or higher (age 25+) | 99.0% ±1.0 pts | 98.3% |
| Bachelor's degree or higher (age 25+) | 73.7% ±5.3 pts | 75.2% |
| Graduate or professional degree (age 25+) | 29.4% ±6.2 pts | 33.1% |
| Lived in the same house a year earlier | 95.0% ±3.1 pts | 91.7% |
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 4742.03 earn?
Half of the 1,692 households in Census Tract 4742.03 earn less than $148,281 a year (±$31,722), against $78,548 across Allegheny County: 25th highest of the county's 374 tracts with a reliable estimate.
| Measure | Tract 4742.03 | Upper St. Clair Township |
|---|---|---|
| Median household income | $148,281 ±$31,722 | $163,409 |
| Mean household income | $186,941 ±$22,555 | $202,167 |
| Per capita income | $69,598 ±$8,066 | $74,315 |
| People below the poverty line | 1.1% ±1.0 pts | 2.5% |
| Children under 18 below the poverty line | 1.7% ±2.6 pts | 2.1% |
| Households receiving SNAP | 1.7% ±1.5 pts | 2.8% |
| Households with a computer | 96.7% ±3.3 pts | 95.5% |
| Households with a broadband subscription | 97.3% ±2.5 pts | 94.6% |
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 4742.03?
Owners occupy 99.2% of Census Tract 4742.03's occupied homes and renters 0.8%. The median owner-occupied home is valued at $380,200 by its owner (±$26,235).
| Measure | Tract 4742.03 | Upper St. Clair Township |
|---|---|---|
| Median home value (owner-occupied) | $380,200 ±$26,235 | $431,800 |
| Renters paying 35% or more of income on rent | 0.0% ±79.3 pts | 49.0% |
| Median monthly owner costs, with a mortgage | $2,529 ±$267 | $2,745 |
| Owner-occupied homes | 99.2% ±1.3 pts | 87.9% |
| Renter-occupied homes | 0.8% ±1.3 pts | 12.1% |
| Housing units | 1,721 ±205 | 7,836 |
| Single-family detached homes | 100.0% ±1.9 pts | 86.3% |
| Mobile homes | 0.0% ±1.9 pts | 0.1% |
| Built 2020 or later | 0.9% ±1.1 pts | 0.6% |
| Built 2010 to 2019 | 3.6% ±2.1 pts | 7.9% |
| Built 1939 or earlier | 0.0% ±1.9 pts | 3.2% |
| Households with no vehicle | 0.6% ±1.0 pts | 3.8% |
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 4742.03 get to work?
61.6% of Census Tract 4742.03's workers drive alone and 29.2% work from home. The average trip to work takes 30.2 minutes.
| Measure | Tract 4742.03 | Upper St. Clair Township |
|---|---|---|
| In the labor force (age 16+) | 67.2% ±4.5 pts | 64.5% |
| Unemployment rate | 1.8% ±1.3 pts | 3.5% |
| Drove alone to work | 61.6% ±6.4 pts | 60.4% |
| Carpooled | 4.6% ±3.2 pts | 3.9% |
| Public transportation | 3.6% ±2.4 pts | 3.1% |
| Walked | 0.0% ±1.4 pts | 0.5% |
| Worked from home | 29.2% ±6.0 pts | 31.1% |
| Mean travel time to work | 30.2 min ±2.7 | 28.8 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 4742.03 compare with the other tracts in Allegheny County?
Among Allegheny County's tracts with a reliable estimate, Census Tract 4742.03 ranks as shown below (1 = highest).
| Measure | In Allegheny County |
|---|---|
| Population | 73rd of 384 |
| Residents per square mile | 239th of 394 |
| Median household income | 25th of 374 |
| Per capita income | 44th of 383 |
| Median home value | 55th of 368 |
| Bachelor's degree or higher | 42nd of 372 |
| Median age | 163rd of 383 |
| Owner-occupied share | 1st of 374 |
The tracts next to it on Allegheny County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4100 | 22nd | $153,125±$26,284 · within the margin of this tract |
| Tract 4736.01 | 23rd | $152,833±$25,747 · within the margin of this tract |
| Tract 4911.01 | 24th | $151,167±$23,937 · within the margin of this tract |
| Tract 4742.03 | 25th | $148,281±$31,722 |
| Tract 4142 | 26th | $147,672±$24,250 · within the margin of this tract |
| Tract 4141.01 | 27th | $139,694±$37,841 · within the margin of this tract |
| Tract 4734.02 | 28th | $138,561±$28,500 · 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 4742.03?
3 of the 17 figures for Census Tract 4742.03 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