What kinds of homes are in Knollwood, IL?

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

Knollwood, IL has 688 (±150) homes (2020–2024 American Community Survey).

That is about 1,137 homes per square mile of land.

84.4% are detached single-family houses.

0.0% are in buildings of two to four units.

5.1% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 688 (±150)
Detached houses: 84.4%
2–4 unit buildings: 0.0%
5+ unit buildings: 5.1%

Homes in Knollwood by building size

Housing units by units in structure, 2020–2024
Building type	Knollwood	Lake County	Illinois	United States
Single-family, detached	84.4% (±12.6 points)	66.6%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	9.3% (±10.7 points)	10.3%	6.1%	6.2%
2 units	0.0% (±5.3 points)	2.5%	5.2%	3.4%
3 or 4 units	0.0% (±5.3 points)	3.3%	6.4%	4.3%
5 to 9 units	0.0% (±5.3 points)	3.8%	6.3%	4.5%
10 to 19 units	2.0% (±3.6 points)	4.3%	4.0%	4.3%
20 or more units	3.1% (±4.6 points)	7.5%	11.5%	10.3%
Mobile home	1.2% (±2.2 points)	1.6%	2.3%	5.6%
Boat, RV, van, etc.	0.0% (±5.3 points)	0.0%	0.0%	0.1%

In Knollwood, the share of homes in buildings of five or more units is lower than in Lake County (15.6%).

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 Knollwood

Nearest places with a published estimate, compared with Knollwood
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Knollwood	—	5.1% (±7.9 points)	—
Shields Township	1.2 mi	16.8% (±3.0 points)	Higher
Lake Bluff	1.4 mi	1.3% (±2.7 points)	Not measurably different
Green Oaks	1.9 mi	17.7% (±7.9 points)	Higher
North Chicago	2.4 mi	28.2% (±4.2 points)	Higher
Libertyville Township	3.4 mi	21.6% (±2.7 points)	Higher
Mettawa	3.6 mi	0.0% (±21.7 points)	Not measurably different
Lake Forest	3.6 mi	12.7% (±3.1 points)	Not measurably different
Libertyville	4.5 mi	15.8% (±2.7 points)	Higher

Nearby places with a measurably higher figure: Shields Township, IL (16.8%), Green Oaks, IL (17.7%), North Chicago, IL (28.2%).

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 Lake County, place by place

Rank	Place	Homes in buildings of 5 or more units
38	Benton Township (Lake County)	8.5% (±3.7 points)
39	Round Lake Beach	8.1% (±3.3 points)
40	West Deerfield Township	7.7% (±1.4 points)
41	Lake Villa Township	7.0% (±1.8 points)
42	Wauconda Township	6.9% (±2.2 points)
43	Winthrop Harbor	6.3% (±3.2 points)
44 (tie)	Knollwood	5.1% (±7.9 points)
44 (tie)	Lindenhurst	5.1% (±3.3 points)
46	Round Lake Heights	4.5% (±6.9 points)
47	Grandwood Park	3.9% (±2.1 points)
48	Hainesville	3.2% (±5.4 points)
49	Volo	2.8% (±2.5 points)
50	Third Lake	2.1% (±11.1 points)

Showing 13 of 71 places in Lake County, ranked from highest to lowest.

Knollwood is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

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 Knollwood

How many homes are in Knollwood?

Knollwood, IL has an estimated 688 (±150) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Knollwood houses or apartments?

84.4% are detached houses and 9.3% attached houses, while 5.1% are in buildings of two or more units.

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

0.0% of homes in Knollwood 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 — Knollwood CDP, 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 Knollwood CDP, Illinois (place:40364, 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.