Borough · Pennsylvania
North Irwin, Pennsylvania
North Irwin, borough, in Westmoreland County, Pennsylvania. North Irwin had 804 residents on July 1, 2025 by the Census Bureau's estimate, down 2.2% since 2020; the 2020 Census counted 823 and the ACS 2020-2024 5-year estimates put it at 799 (±190). GEOID 4255136.
Residents, July 2025 estimate
804
Census Bureau estimate (no margin published)
2020 Census count: 823 · ACS 2020-2024: 799 ±190
Median household income
$49,063
±$9,319 (90% margin)
Pennsylvania: $77,971
Median home value
$140,800
±$22,662 (90% margin)
Pennsylvania: $254,500
Median gross rent
$844
±$134 (90% margin)
Pennsylvania: $1,209
Where is North Irwin and what county is it in?
North Irwin is a borough in Westmoreland County, Pennsylvania. It covers 0.2 square miles of land, 4,074 residents per square mile in 2020.
North Irwin is in the Pittsburgh, PA metropolitan statistical area, which takes in 8 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in North Irwin, and is it growing?
The Census Bureau estimates that 804 people lived in North Irwin on July 1, 2025, down 2.2% since 2020, while Pennsylvania grew 0.4%. The 2020 Census counted 823 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 799 (±190).
| Measure | North Irwin | Westmoreland County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 799 ±190 | 352,500 | no clear change |
| Households | 393 ±76 | 154,979 | no clear change |
| Average household size | 2.03 ±0.24 | 2.23 | no clear change |
| Housing units | 414 ±77 | 168,812 | no clear change |
North Irwin's population since 2000
From 879 in 2000 to 804 in 2025: down 8.5%. The 2000, 2010 and 2020 figures are census counts, each for North Irwin as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in North Irwin?
The median resident of North Irwin is 37.6 years old; 14.0% are under 18 and 21.5% are 65 or older. The largest group is non-Hispanic white residents at 93.6%, then non-Hispanic residents of two or more races at 4.6%.
| Measure | North Irwin | Westmoreland County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.6 ±7.4 | 47.2 | no clear change |
| Under 18 years | 14.0% ±4.2 pts | 18.2% | – |
| 65 years and over | 21.5% ±7.9 pts | 24.3% | – |
| Male | 50.3% ±4.3 pts | 49.4% | – |
| Hispanic or Latino (any race) | 1.8% ±2.2 pts | 1.6% | – |
| White alone, not Hispanic | 93.6% ±4.7 pts | 91.4% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±4.0 pts | 2.5% | – |
| Asian alone, not Hispanic | 0.0% ±4.0 pts | 1.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±4.0 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.6% ±3.5 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.0% ±4.0 pts | 0.2% | – |
| Born outside the United States | 0.0% ±4.0 pts | 1.9% | – |
| Speak a language other than English at home (age 5+) | 0.1% ±0.5 pts | 2.8% | – |
| Civilian veterans (age 18+) | 7.1% ±3.8 pts | 7.3% | – |
| With a disability | 10.0% ±4.1 pts | 15.1% | – |
| No health insurance coverage | 5.5% ±2.8 pts | 3.0% | no clear change |
| High school graduate or higher (age 25+) | 99.2% ±1.0 pts | 95.5% | – |
| Bachelor's degree or higher (age 25+) | 21.2% ±9.7 pts | 32.8% | no clear change |
| Graduate or professional degree (age 25+) | 5.2% ±2.6 pts | 11.8% | – |
| Lived in the same house a year earlier | 87.1% ±4.8 pts | 92.3% | – |
| Moved from another state in the past year | 0.0% ±4.1 pts | 1.0% | – |
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 North Irwin earn?
Half of North Irwin's 393 households earn less than $49,063 a year (±$9,319), against $74,109 in Westmoreland County and $77,971 in Pennsylvania. In 2015-2019 the median was $65,296 in 2024 dollars, so it fell by $16,233 after inflation. 9.9% of residents live below the poverty line.
| Measure | North Irwin | Westmoreland County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $49,063 ±$9,319 | $74,109 | −$16,233 |
| Mean household income | $68,648 ±$12,241 | $97,695 | – |
| Per capita income | $35,207 ±$4,087 | $43,509 | no clear change |
| People below the poverty line | 9.9% ±4.5 pts | 10.3% | no clear change |
| Children under 18 below the poverty line | 11.6% ±11.2 pts | 14.1% | – |
| Households receiving SNAP | 12.5% ±5.0 pts | 13.9% | – |
| Households with a computer | 88.3% ±6.7 pts | 92.3% | – |
| Households with a broadband subscription | 88.0% ±6.8 pts | 88.5% | – |
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 North Irwin?
Owners occupy 61.8% of North Irwin's occupied homes and renters 38.2%. The median owner-occupied home is valued at $140,800 by its owner (±$22,662). The median renter pays $844 a month including utilities, and 31.7% of renters pay 35% or more of their income on rent.
| Measure | North Irwin | Westmoreland County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $140,800 ±$22,662 | $203,500 | no clear change |
| Median gross rent | $844 ±$134 | $879 | no clear change |
| Renters paying 35% or more of income on rent | 31.7% ±15.4 pts | 32.7% | no clear change |
| Median monthly owner costs, with a mortgage | $1,115 ±$89 | $1,452 | – |
| Owner-occupied homes | 61.8% ±11.1 pts | 78.4% | no clear change |
| Renter-occupied homes | 38.2% ±11.1 pts | 21.6% | – |
| Housing units | 414 ±77 | 168,812 | no clear change |
| Homeowner vacancy rate | 0.0% ±12.5 pts | 0.6% | – |
| Rental vacancy rate | 0.0% ±18.7 pts | 3.9% | – |
| Single-family detached homes | 69.3% ±9.9 pts | 76.9% | – |
| Mobile homes | 0.0% ±7.5 pts | 5.1% | – |
| Built 2020 or later | 0.0% ±7.5 pts | 0.7% | – |
| Built 2010 to 2019 | 0.0% ±7.5 pts | 3.7% | – |
| Built 1939 or earlier | 38.6% ±8.8 pts | 19.8% | – |
| Households with no vehicle | 2.8% ±2.4 pts | 6.2% | – |
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 many new homes is North Irwin building?
Builders took permits for 0 new housing units in North Irwin in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 2.0 across Pennsylvania.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in North Irwin work and get to work?
83.0% of North Irwin's workers drive alone and 14.3% work from home. The average trip to work takes 29.5 minutes. The unemployment rate in 2020-2024 averaged 4.2%.
| Measure | North Irwin | Westmoreland County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.9% ±9.0 pts | 60.3% | – |
| Unemployment rate | 4.2% ±2.7 pts | 4.8% | no clear change |
| Drove alone to work | 83.0% ±6.4 pts | 77.2% | – |
| Carpooled | 2.2% ±2.0 pts | 6.6% | – |
| Public transportation | 0.0% ±6.8 pts | 0.5% | – |
| Walked | 0.4% ±0.7 pts | 1.6% | – |
| Worked from home | 14.3% ±6.1 pts | 13.3% | – |
| Mean travel time to work | 29.5 min ±4.3 | 26.7 min | +5.0 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
What census tracts are in North Irwin?
No census tract lies mostly in North Irwin; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 8030Westmoreland County | 4,630 | $58,518 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in North Irwin) · Census block assignment files
How does North Irwin compare with other places in Pennsylvania?
By the Census Bureau's July 2025 estimates, North Irwin is the 11,228th-most populous of the 19,476 U.S. incorporated places that have one and the 648th-most populous of 1,012 in Pennsylvania.
North Irwin is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 648th | 1,012 |
North Irwin's figures with every place in Pennsylvania (CSV)
Every place in Pennsylvania, sortable · Compare North Irwin with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for North Irwin?
20 of the 57 figures for North Irwin 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for North Irwin are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in North Irwin.