Population 42,727 · Census ACS 2020–24
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Population and households in Irwin
Household size in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.58 | 2.37 | 2.51 | 2.68 |
| 2010–14 | 2.52 | 2.35 | 2.53 | 2.73 |
| 2015–19 | 2.43 | 2.29 | 2.50 | 2.71 |
| 2020–24 | 2.42 | 2.30 | 2.46 | 2.65 |
| Change | −0.16 | −0.07 | −0.05 | −0.03 |
Households in Irwin run small, averaging 2.42 people against 2.65 nationally, which usually means more singles and couples and fewer children. Still, the typical household here is bigger than in the Pittsburgh area overall, where it has 2.30 people. Household size has dropped from 2.58 in 2006–10, a much bigger shift than nationally.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 42.9 | 42.5 | 40.3 | 37.7 |
| 2010–14 | 44.4 | 43.0 | 41.0 | 38.6 |
| 2015–19 | 46.1 | 43.7 | 41.8 | 39.6 |
| 2020–24 | 46.0 | 43.9 | 42.0 | 40.1 |
| Change | +3.1 | +1.4 | +1.7 | +2.3 |
Irwin skews older: half of its residents are older than 46.0, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 42.9 in 2006–10, in line with the national trend.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 8.9% | 10.5% | 12.3% |
| 2010–14 | 6.8% | 8.8% | 10.6% | 12.3% |
| 2015–19 | 5.7% | 8.4% | 10.5% | 11.6% |
| 2020–24 | 7.1% | 8.8% | 10.7% | 11.6% |
| Change | +1.2 pts | −0.0 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in Irwin: 7.1% of households, against 11.6% nationally. The single-parent share has edged up 1.2 points since 2006–10, even as the national share fell.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Irwin
Renters in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.6% | 28.5% | 29.0% | 33.3% |
| 2010–14 | 14.9% | 29.9% | 30.5% | 35.6% |
| 2015–19 | 15.3% | 30.3% | 31.1% | 36.0% |
| 2020–24 | 15.1% | 29.3% | 30.7% | 34.8% |
| Change | −0.4 pts | +0.8 pts | +1.7 pts | +1.5 pts |
Only 15.1% of households in Irwin rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 38.4% have no mortgage at all, about the same as nationally. Renting is most common in the center and least common in the southwest.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 10.7% | 10.3% | 11.4% |
| 2010–14 | 7.3% | 10.4% | 10.5% | 11.4% |
| 2015–19 | 5.5% | 10.5% | 10.7% | 11.1% |
| 2020–24 | 5.4% | 10.0% | 9.1% | 9.6% |
| Change | −0.1 pts | −0.7 pts | −1.2 pts | −1.8 pts |
Empty homes are scarce in Irwin: just 5.4% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Compared with other Pennsylvania cities, Irwin has a lower vacancy rate than most.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1970 | 1960 | 1963 | 1974 |
| 2010–14 | 1971 | 1961 | 1964 | 1975 |
| 2015–19 | 1972 | 1962 | 1965 | 1977 |
| 2020–24 | 1972 | 1964 | 1967 | 1980 |
| Change | +3 | +4 | +4 | +6 |
Homes in Irwin run older than the national norm, with a median build year of 1972 against 1980. Still, homes here are newer than in the Pittsburgh area as a whole, where the median home dates to 1964. Newer construction is concentrated in the southwest, while the center has the oldest housing.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $653 | $720 | $829 | $965 |
| 2010–14 | $659 | $801 | $923 | $1,040 |
| 2015–19 | $796 | $922 | $1,039 | $1,213 |
| 2020–24 | $1,185 | $1,162 | $1,323 | $1,571 |
| Change | +$532 | +$442 | +$494 | +$606 |
The median renter in Irwin pays $1,185 a month for rent and utilities, well below the national median of $1,571. Rents are up $532 a month from 2006–10, an 81% jump, faster than rents rose nationally. The typical renter here spends 23.5% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the northeast and lowest in the southeast.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Irwin
Bachelor's degrees in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 30.0% | 29.5% | 27.2% | 28.4% |
| 2010–14 | 35.4% | 31.7% | 28.7% | 29.6% |
| 2015–19 | 36.3% | 35.2% | 31.8% | 32.1% |
| 2020–24 | 42.0% | 39.0% | 35.6% | 35.6% |
| Change | +12.0 pts | +9.5 pts | +8.3 pts | +7.2 pts |
College degrees are a bit more common in Irwin than nationally: 42.0% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 12.0 points, as it has nationally. College graduates are most concentrated in the northeast and least in the center.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 94.7% | 90.8% | 87.3% | 84.9% |
| 2010–14 | 95.7% | 92.3% | 88.8% | 86.1% |
| 2015–19 | 96.8% | 93.8% | 90.3% | 87.7% |
| 2020–24 | 97.3% | 95.0% | 91.8% | 89.3% |
| Change | +2.6 pts | +4.2 pts | +4.5 pts | +4.3 pts |
Finishing high school is nearly universal in Irwin: 97.3% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 2.6 points, mirroring the country. Irwin has a higher share of high school graduates than at least four in five Pennsylvania cities.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Irwin
| Period | Irwin | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.6% | 6.9% | 7.5% | 8.1% |
| 2010–14 | 5.2% | 7.5% | 8.8% | 9.4% |
| 2015–19 | 3.6% | 4.9% | 5.5% | 5.6% |
| 2020–24 | 4.1% | 5.0% | 5.4% | 5.4% |
| Change | −1.6 pts | −1.9 pts | −2.1 pts | −2.7 pts |
Unemployment in Irwin runs below the national rate: 4.1% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has fallen 1.6 points since 2006–10, in line with the national trend. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Irwin compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Irwin | 2.42 | 46.0 | 7.1% | 15.1% | 5.4% | 1972 | $1,185 | 42.0% | 97.3% | 4.1% |
| North Irwin | 1.89 | 40.8 | 7.2% | 40.1% | 2.9% | 1943 | $846 | 21.2% | 92.6% | 2.4% |
| Larimer | 2.32 | 39.5 | 7.8% | 16.9% | 10.3% | 1960 | $1,159 | 35.1% | 96.9% | 10.7% |
| Westmoreland City | 2.57 | 41.0 | 5.2% | 4.2% | 1.7% | 1982 | $854 | 48.8% | 99.0% | 7.1% |
| Rillton | 2.11 | 50.1 | 6.8% | 15.3% | 9.7% | 1970 | $877 | 27.6% | 96.5% | 1.9% |
| Manor | 2.70 | 43.2 | 10.9% | 7.4% | 1.4% | 1970 | $856 | 43.6% | 98.8% | 9.4% |
| Ardara | 2.18 | 51.4 | 7.4% | 5.2% | 13.2% | 1949 | $1,300 | 18.7% | 91.2% | 0.0% |
| Adamsburg | 2.21 | 53.2 | 3.1% | 5.5% | 7.8% | 1963 | $875 | 35.2% | 94.3% | 3.6% |
| Level Green | 2.88 | 41.1 | 3.8% | 0.2% | 4.6% | 2002 | $909 | 46.8% | 98.7% | 0.0% |
| Herminie | 2.34 | 49.5 | 10.4% | 20.4% | 7.8% | 1962 | $1,021 | 26.9% | 95.9% | 1.7% |
| Greenock | 2.00 | 50.3 | 14.8% | 18.9% | 11.9% | 1950 | $1,034 | 20.4% | 93.2% | 2.7% |
All figures 2020–24.
Cities with similar populations: The Acreage, FL · Haines City, FL · Hamburg, NY · Hampton, GA · Hicksville, NY · Hudson, FL · Hutto, TX · Kailua, HI · Kearny, NJ · Kent, OH
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Irwin. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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