Forest Lake vs Knollwood

A side-by-side comparison of Forest Lake and Knollwood: population, income, housing, and more.

Forest Lake and Knollwood are places in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Knollwood has the higher population (1,907 vs 1,797 in Forest Lake). Knollwood has the higher median household income ($133,452 vs $92,956 in Forest Lake). Knollwood has the higher median home value ($372,500 vs $318,300 in Forest Lake).

Population, income & housing

	Forest Lake	Knollwood
Population	1,797	1,907
Median age	40.8 yrs	36.9 yrs
Median household income	$92,956	$133,452
Median home value	$318,300	$372,500
Median gross rent	—	$1,733
Housing units	737	778
Homeownership rate	94.5%	76.8%
Bachelor's degree or higher	52.4%	45.6%
Unemployment rate	5.3%	0.0%

Trends (ACS 5-year, 2019–2023)

	Forest Lake	Knollwood
Population	1,327 → 1,797 (+35.4%)	1,665 → 1,907 (+14.5%)
Median household income	$125,096 → $92,956 (-25.7%)	$103,750 → $133,452 (+28.6%)
Median home value	$321,200 → $318,300 (-0.9%)	$324,100 → $372,500 (+14.9%)
Median gross rent	—	$1,545 → $1,733 (+12.2%)

Forest Lake

Population

1,3271,797

Median household income

$125,096$92,956

Median home value

$321,200$318,300

Knollwood

Population

1,6651,907

Median household income

$103,750$133,452

Median home value

$324,100$372,500

Median gross rent

$1,545$1,733

Age & race/ethnicity

Age distribution (share)

	Forest Lake	Knollwood
Under 5	0.0%	6.9%
5 to 17	25.8%	29.9%
18 to 24	10.7%	1.6%
25 to 34	2.4%	7.2%
35 to 44	23.7%	9.8%
45 to 54	6.3%	18.3%
55 to 64	26.7%	5.8%
65 to 74	1.4%	12.3%
75 and over	2.8%	8.1%

Race & ethnicity (share)

	Forest Lake	Knollwood
White (non-Hispanic)	70.9%	75.6%
Black or African American	0.0%	6.1%
American Indian & Alaska Native	0.0%	0.0%
Asian	5.5%	1.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	1.0%
Hispanic or Latino	23.7%	15.9%

Educational attainment (age 25+)

Share of adults 25+

	Forest Lake	Knollwood
No high school diploma	25.7%	4.3%
High school graduate	16.2%	26.4%
Some college or associate's	5.7%	23.8%
Bachelor's degree	37.5%	32.5%
Graduate or professional degree	14.8%	13.0%

Commute to work

How workers get to work (share)

	Forest Lake	Knollwood
Drove alone	90.4%	66.1%
Carpooled	0.0%	0.0%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	3.4%
Worked from home	4.8%	29.3%
Other means	4.8%	1.1%

Housing

Units in structure (share)

	Forest Lake	Knollwood
1-unit, detached	100.0%	86.4%
1-unit, attached	0.0%	5.1%
2 to 4 units	0.0%	0.0%
5 to 19 units	0.0%	4.0%
20 or more units	0.0%	3.3%
Mobile home & other	0.0%	1.2%

Poverty & households

	Forest Lake	Knollwood
Poverty rate	5.3%	8.8%
Average household size	2.73	2.89
Mean commute (minutes)	30	23
Median year structure built	1994	1970