What kinds of homes are in Salem, IL?

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

Salem, IL has 3,430 (±183) homes (2020–2024 American Community Survey).

That is about 491 homes per square mile of land.

73.6% are detached single-family houses.

11.3% are in buildings of two to four units.

8.2% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 3,430 (±183)
Detached houses: 73.6%
2–4 unit buildings: 11.3%
5+ unit buildings: 8.2%

Homes in Salem by building size

Housing units by units in structure, 2020–2024
Building type	Salem	Marion County	Illinois	United States
Single-family, detached	73.6% (±4.3 points)	71.5%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	0.2% (±0.3 points)	0.7%	6.1%	6.2%
2 units	3.0% (±1.7 points)	1.7%	5.2%	3.4%
3 or 4 units	8.3% (±2.9 points)	3.4%	6.4%	4.3%
5 to 9 units	3.3% (±2.1 points)	2.9%	6.3%	4.5%
10 to 19 units	1.7% (±1.2 points)	1.0%	4.0%	4.3%
20 or more units	3.2% (±1.7 points)	1.6%	11.5%	10.3%
Mobile home	6.8% (±2.7 points)	16.9%	2.3%	5.6%
Boat, RV, van, etc.	0.0% (±1.1 points)	0.2%	0.0%	0.1%

In Salem, the share of homes in buildings of five or more units is not measurably different from Marion County (5.5%).

It is also lower than in Illinois (21.8%).

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

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

Nearest places with a published estimate, compared with Salem
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Salem	—	8.2% (±3.0 points)	—
Salem Township (Marion County)	1.5 mi	6.9% (±2.4 points)	Not measurably different
Tonti Township	4.4 mi	0.0% (±11.1 points)	Not measurably different
Odin	5.2 mi	5.6% (±11.4 points)	Not measurably different
Stevenson Township	5.5 mi	0.0% (±13.9 points)	Not measurably different
Odin Township	5.9 mi	3.3% (±6.8 points)	Not measurably different
Alma	7.1 mi	4.1% (±17.6 points)	Not measurably different
Alma Township	7.3 mi	1.9% (±8.8 points)	Not measurably different
Raccoon Township	7.6 mi	0.0% (±8.8 points)	Not measurably different

None of the nearby places differs measurably from this one on this figure.

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 Marion County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Centralia	12.6% (±2.7 points)
2	Centralia Township	8.4% (±2.3 points)
3 (tie)	Salem	8.2% (±3.0 points)
3 (tie)	Sandoval	8.2% (±8.6 points)
5	Salem Township (Marion County)	6.9% (±2.4 points)
6	Sandoval Township	6.3% (±3.4 points)
7	Odin	5.6% (±11.4 points)
8	Alma	4.1% (±17.6 points)
9 (tie)	Junction City	3.9% (±21.6 points)

Showing 9 of 31 places in Marion 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 Salem

How many homes are in Salem?

Salem, IL has an estimated 3,430 (±183) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Salem houses or apartments?

73.6% are detached houses and 0.2% attached houses, while 19.5% are in buildings of two or more units.

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

11.3% of homes in Salem 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 — Salem city, Illinois

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 Salem city, Illinois (place:67236, in state:17).

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.