What kinds of homes are in Irwin, PA?

Name: Types of homes in Irwin, PA, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Irwin, PA has 1,970 (±241) homes (2020–2024 American Community Survey).

That is about 2,351 homes per square mile of land.

45.5% are detached single-family houses.

20.1% are in buildings of two to four units.

25.4% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 1,970 (±241)
Detached houses: 45.5%
2–4 unit buildings: 20.1%
5+ unit buildings: 25.4%

Homes in Irwin by building size

Housing units by units in structure, 2020–2024
Building type	Irwin	Westmoreland County	Pennsylvania	United States
Single-family, detached	45.5% (±8.6 points)	76.9%	56.6%	61.3%
Single-family, attached (townhouse, rowhouse)	8.2% (±5.7 points)	5.3%	18.8%	6.2%
2 units	15.5% (±8.8 points)	3.1%	4.3%	3.4%
3 or 4 units	4.6% (±3.7 points)	2.8%	4.0%	4.3%
5 to 9 units	7.3% (±4.8 points)	1.8%	3.1%	4.5%
10 to 19 units	8.8% (±5.2 points)	1.5%	2.6%	4.3%
20 or more units	9.3% (±6.0 points)	3.4%	7.0%	10.3%
Mobile home	1.0% (±1.5 points)	5.1%	3.5%	5.6%
Boat, RV, van, etc.	0.0% (±1.6 points)	0.0%	0.0%	0.1%

In Irwin, the share of homes in buildings of five or more units is higher than in Westmoreland County (6.7%).

It is also higher than in Pennsylvania (12.7%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near Irwin

Nearest places with a published estimate, compared with Irwin
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Irwin	—	25.4% (±9.3 points)	—
North Irwin	1.1 mi	8.2% (±11.4 points)	Lower
North Huntingdon Township	1.8 mi	2.4% (±1.0 points)	Lower
Manor	2.2 mi	0.0% (±4.3 points)	Lower
Adamsburg	2.5 mi	28.2% (±38.4 points)	Not measurably different
Penn	3.0 mi	0.0% (±22.7 points)	Lower
Penn Township (Westmoreland County)	4.1 mi	2.6% (±1.3 points)	Lower
Jeannette	4.5 mi	5.9% (±2.9 points)	Lower
Arona	4.6 mi	0.0% (±33.9 points)	Not measurably different

Nearby places with a measurably lower figure: North Irwin, PA (8.2%), North Huntingdon Township, PA (2.4%), Manor, PA (0.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Westmoreland County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Adamsburg	28.2% (±38.4 points)
2	New Stanton	28.0% (±7.9 points)
3	Delmont	25.5% (±13.3 points)
4	Irwin	25.4% (±9.3 points)
5	Greensburg	23.1% (±3.5 points)
6	New Kensington	16.7% (±3.6 points)
7	Youngwood	14.2% (±8.1 points)
8	Scottdale	11.4% (±6.2 points)
9	Latrobe	11.1% (±3.5 points)
10 (tie)	Derry	11.0% (±3.5 points)

Showing 10 of 65 places in Westmoreland County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Irwin

How many homes are in Irwin?

Irwin, PA has an estimated 1,970 (±241) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Irwin houses or apartments?

45.5% are detached houses and 8.2% attached houses, while 45.5% are in buildings of two or more units.

How many two-family and small multifamily homes are in Irwin?

20.1% of homes in Irwin are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Irwin borough, Pennsylvania

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Irwin borough, Pennsylvania (place:37208, in state:42).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.