What kinds of homes are in Oswego, IL?

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

Oswego, IL has 12,440 (±376) homes (2020–2024 American Community Survey).

That is about 786 homes per square mile of land.

71.6% are detached single-family houses.

3.0% are in buildings of two to four units.

7.0% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 12,440 (±376)
Detached houses: 71.6%
2–4 unit buildings: 3.0%
5+ unit buildings: 7.0%

Homes in Oswego by building size

Housing units by units in structure, 2020–2024
Building type	Oswego	Kendall County	Illinois	United States
Single-family, detached	71.6% (±2.8 points)	73.9%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	18.4% (±2.7 points)	17.0%	6.1%	6.2%
2 units	0.3% (±0.3 points)	0.6%	5.2%	3.4%
3 or 4 units	2.7% (±1.0 points)	2.4%	6.4%	4.3%
5 to 9 units	1.1% (±0.8 points)	1.4%	6.3%	4.5%
10 to 19 units	3.2% (±1.7 points)	2.2%	4.0%	4.3%
20 or more units	2.7% (±1.0 points)	2.3%	11.5%	10.3%
Mobile home	0.0% (±0.3 points)	0.2%	2.3%	5.6%
Boat, RV, van, etc.	0.0% (±0.3 points)	0.0%	0.0%	0.1%

In Oswego, the share of homes in buildings of five or more units is not measurably different from Kendall County (5.9%).

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 Oswego

Nearest places with a published estimate, compared with Oswego
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Oswego	—	7.0% (±2.1 points)	—
Oswego Township	1.2 mi	8.4% (±2.2 points)	Not measurably different
Boulder Hill	1.9 mi	3.7% (±2.5 points)	Lower
Montgomery	2.8 mi	7.5% (±2.8 points)	Not measurably different
Yorkville	4.9 mi	10.3% (±3.3 points)	Not measurably different
Bristol Township	5.1 mi	7.3% (±2.4 points)	Not measurably different
Aurora Township	6.0 mi	17.4% (±1.6 points)	Higher
Plainfield	6.1 mi	6.2% (±1.4 points)	Not measurably different
Aurora	6.1 mi	15.7% (±1.3 points)	Higher

Nearby places with a measurably lower figure: Boulder Hill, IL (3.7%).

Nearby places with a measurably higher figure: Aurora Township, IL (17.4%), Aurora, IL (15.7%).

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 Kendall County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Yorkville	10.3% (±3.3 points)
2	Newark	9.9% (±10.1 points)
3	Oswego Township	8.4% (±2.2 points)
4	Bristol Township	7.3% (±2.4 points)
5	Oswego	7.0% (±2.1 points)
6	Big Grove Township	6.6% (±6.8 points)
7	Boulder Hill	3.7% (±2.5 points)
8	Kendall Township	3.6% (±2.1 points)
9	Plano	1.3% (±0.9 points)
10	Little Rock Township	1.0% (±0.8 points)
11 (tie)	Lisbon	0.0% (±49.2 points)

Showing 11 of 17 places in Kendall 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 Oswego

How many homes are in Oswego?

Oswego, IL has an estimated 12,440 (±376) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Oswego houses or apartments?

71.6% are detached houses and 18.4% attached houses, while 10.0% are in buildings of two or more units.

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

3.0% of homes in Oswego 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 — Oswego village, 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 Oswego village, Illinois (place:56887, 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.