What is the median rent in Knollwood, IL?

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

The median gross rent in Knollwood, IL is $1,659 (±$333) a month, according to the US Census Bureau’s 2020–2024 American Community Survey.

That is across 117 rented homes; gross rent is the contract rent plus the utilities and fuels a renter pays separately.

In Knollwood, the median gross rent went from $1,545 in 2015–2019 to $1,659 in 2020–2024 (+7.4%).

Prices (CPI-U) rose 22.7% over the same years; the change is not measurably different from the rise in prices.

Figures last updated on November 12, 2026.

Median gross rent: $1,659 (±$333)
Rented homes: 117 (±78)
$2,000 or more: 6.8%
Since 2015–2019: +7.4%

How much rent costs in Knollwood

Share of rented homes in each gross-rent range, 2020–2024
Monthly gross rent	Knollwood	Lake County	Illinois	United States
Less than $500	0.0% (±26.9 points)	5.1%	7.0%	6.3%
$500 to $999	17.9% (±26.7 points)	14.9%	23.5%	20.2%
$1,000 to $1,499	12.0% (±20.6 points)	31.3%	32.6%	28.1%
$1,500 to $1,999	63.2% (±34.1 points)	26.2%	18.7%	21.1%
$2,000 to $2,499	0.0% (±26.9 points)	12.4%	9.6%	12.0%
$2,500 to $2,999	0.0% (±26.9 points)	4.6%	4.1%	5.5%
$3,000 or more	6.8% (±14.4 points)	5.3%	4.4%	6.8%

The most common range is $1,500 to $1,999, paid by 63.2% of renting households.

6.8% of rented homes in Knollwood cost $2,000 or more a month.

Knollwood against Lake County, its state and the nation

Estimate (90% margin of error)
	Knollwood	Lake County	Illinois	United States
Median gross rent	$1,659 (±$333)	$1,477 (±$29)	$1,274 (±$5)	$1,413
Rented homes paying rent	117 (±78)	62,163 (±1,559)	1,587,238 (±10,609)	42,849,984

In Knollwood, median gross rent is not measurably different from Lake County ($1,477).

It is also higher than in Illinois ($1,274).

It is not measurably different from the national figure ($1,413).

In Lake County, Knollwood ranks 31 of 64 places with a published estimate, from highest to lowest median gross rent.

Statewide, it ranks 146 of 2,063.

Rankings use the estimates alone; where margins of error overlap, neighboring ranks may not truly differ.

How rent in Knollwood has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
	2015–2019	2020–2024	Amount of change	Verdict
Median gross rent	$1,545 (±$222)	$1,659 (±$333)	+7.4%	No measurable change after inflation
Households that rent	40.2% (±10.8 points)	22.2% (±14.3 points)	−18.0 percentage points	Measurable decrease
Rental vacancy rate	9.8% (±14.4 points)	0.0% (±24.5 points)	−9.8 percentage points	Not a measurable change

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Median gross rent in places near Knollwood

Nearest places with a published estimate, compared with Knollwood
Place	Distance	Median gross rent	Compared with this place
Knollwood	—	$1,659 (±$333)	—
Shields Township	1.2 mi	$1,680 (±$89)	Not measurably different
Lake Bluff	1.4 mi	$2,063 (±$800)	Not measurably different
Green Oaks	1.9 mi	$1,356 (±$1,316)	Not measurably different
North Chicago	2.4 mi	$1,426 (±$75)	Not measurably different
Libertyville Township	3.4 mi	$1,690 (±$80)	Not measurably different
Lake Forest	3.6 mi	$1,815 (±$180)	Not measurably different
Libertyville	4.5 mi	$1,637 (±$123)	Not measurably different
Park City	4.8 mi	$1,110 (±$49)	Lower

Nearby places with a measurably lower figure: Park City, IL ($1,110).

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

Median gross rent across Lake County, place by place

Rank	Place	Median gross rent
25	Round Lake	$1,710 (±$311)
26	Gages Lake	$1,693 (±$151)
27	Libertyville Township	$1,690 (±$80)
28	Old Mill Creek	$1,688 (±$188)
29	Shields Township	$1,680 (±$89)
30	Lake Villa Township	$1,666 (±$93)
31	Knollwood	$1,659 (±$333)
32	Gurnee	$1,655 (±$83)
33	Libertyville	$1,637 (±$123)
34	Fremont Township	$1,598 (±$876)
35	Warren Township (Lake County)	$1,592 (±$60)
36	Channel Lake	$1,584 (±$215)
37 (tie)	Mundelein	$1,566 (±$100)

Showing 13 of 64 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), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Knollwood

What is the average rent in Knollwood, IL?

The Census Bureau publishes the median rather than the average: the median gross rent in Knollwood is $1,659 (±$333) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.

How much has rent gone up in Knollwood?

In Knollwood, the median gross rent went from $1,545 in 2015–2019 to $1,659 in 2020–2024 (+7.4%).

Prices (CPI-U) rose 22.7% over the same years; the change is not measurably different from the rise in prices.

How many rentals in Knollwood cost more than $2,000 a month?

6.8% of rented homes in Knollwood have a gross rent of $2,000 or more a month, and 0.0% cost less than $500.

Is rent in Knollwood higher than in Lake County?

In Knollwood, median gross rent is not measurably different from Lake County ($1,477).

It is also higher than in Illinois ($1,274).

It is not measurably different from the national figure ($1,413).

Is this the rent for an apartment listed today?

No: these are rents households reported paying across 2020–2024, not asking rents for vacant homes, which usually run higher.

Sources

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 2015–2019 figures are B25064_001E, B25064_001M, DP04_0047PE, DP04_0047PM, DP04_0005E, DP04_0005M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0134E, DP04_0134M, DP04_0126E, DP04_0126M, DP04_0127PE, DP04_0127PM, DP04_0128PE, DP04_0128PM, DP04_0129PE, DP04_0129PM, DP04_0130PE, DP04_0130PM, DP04_0131PE, DP04_0131PM, DP04_0132PE, DP04_0132PM, DP04_0133PE, DP04_0133PM

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.