What kinds of homes are in Plum, PA?

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

Plum, PA has 11,533 (±334) homes (2020–2024 American Community Survey).

That is about 404 homes per square mile of land.

78.3% are detached single-family houses.

3.2% are in buildings of two to four units.

7.8% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 11,533 (±334)
Detached houses: 78.3%
2–4 unit buildings: 3.2%
5+ unit buildings: 7.8%

Homes in Plum by building size

Housing units by units in structure, 2020–2024
Building type	Plum	Allegheny County	Pennsylvania	United States
Single-family, detached	78.3% (±2.7 points)	61.6%	56.6%	61.3%
Single-family, attached (townhouse, rowhouse)	10.1% (±2.0 points)	10.3%	18.8%	6.2%
2 units	1.3% (±0.9 points)	4.6%	4.3%	3.4%
3 or 4 units	1.9% (±0.9 points)	4.2%	4.0%	4.3%
5 to 9 units	1.6% (±0.7 points)	4.0%	3.1%	4.5%
10 to 19 units	3.1% (±1.6 points)	3.9%	2.6%	4.3%
20 or more units	3.1% (±1.3 points)	10.6%	7.0%	10.3%
Mobile home	0.7% (±0.4 points)	0.7%	3.5%	5.6%
Boat, RV, van, etc.	0.0% (±0.3 points)	0.0%	0.0%	0.1%

In Plum, the share of homes in buildings of five or more units is lower than in Allegheny County (18.5%).

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

It is lower than the national figure (19.1%).

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

Nearest places with a published estimate, compared with Plum
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Plum	—	7.8% (±2.2 points)	—
Springdale	3.2 mi	12.1% (±3.8 points)	Not measurably different
Cheswick	4.0 mi	1.5% (±5.6 points)	Lower
Springdale Township	4.2 mi	0.5% (±5.7 points)	Lower
Penn Hills Township	4.6 mi	10.0% (±2.4 points)	Not measurably different
Oakmont	4.8 mi	20.3% (±4.8 points)	Higher
New Kensington	4.9 mi	16.7% (±3.6 points)	Higher
Verona	4.9 mi	15.6% (±8.5 points)	Not measurably different
Upper Burrell Township	5.0 mi	4.5% (±4.9 points)	Not measurably different

Nearby places with a measurably lower figure: Cheswick, PA (1.5%), Springdale Township, PA (0.5%).

Nearby places with a measurably higher figure: Oakmont, PA (20.3%), New Kensington, PA (16.7%).

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 Allegheny County, place by place

Rank	Place	Homes in buildings of 5 or more units
74	Harmar Township	9.2% (±5.2 points)
75 (tie)	West Mifflin	9.1% (±3.0 points)
75 (tie)	Marshall Township	9.1% (±3.8 points)
77	Oakdale	8.5% (±6.3 points)
78	West Homestead	8.4% (±6.6 points)
79	Forest Hills	8.2% (±5.1 points)
80	Plum	7.8% (±2.2 points)
81	Richland Township (Allegheny County)	7.6% (±2.7 points)
82 (tie)	Collier Township	7.4% (±2.7 points)
82 (tie)	Harrison Township (Allegheny County)	7.4% (±3.1 points)
84	Pine Township (Allegheny County)	6.4% (±2.7 points)
85	Jefferson Hills	6.2% (±2.7 points)
86 (tie)	Glassport	5.9% (±2.7 points)

Showing 13 of 128 places in Allegheny 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 Plum

How many homes are in Plum?

Plum, PA has an estimated 11,533 (±334) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Plum houses or apartments?

78.3% are detached houses and 10.1% attached houses, while 11.0% are in buildings of two or more units.

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

3.2% of homes in Plum 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 — Plum 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 Plum borough, Pennsylvania (place:61536, 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.