Unincorporated community in Lake County, Illinois
Knollwood
District lines run through Knollwood, so who represents you here depends on your street. Search your address to see yours.
Who lives in Knollwood
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 1,900
- Median age
- 36.4 years
- Under 18
- 37%
- 65 and over
- 19%
- Veterans, of adults
- 3%
- Speak another language at home
- 16%
Race and ethnicity
- Hispanic or Latino, of any race
- 19%
- White, not Hispanic
- 73%
- Black, not Hispanic
- 6%
- Asian, not Hispanic
- 2%
Income and housing
- Median household income
- $138,600
- Below the poverty line
- 8%
- Bachelor's or higher, adults 25+
- 43%
- Owner-occupied homes
- 78%
- Median home value
- $393,000
2024 vote for president
Not counted for Knollwood on its own: its precincts follow township lines, not the town’s. See the figure for Lake County.
Represent all of Knollwood
Represent part of Knollwood
Each represents the part of Knollwood inside their district. Under each is how many people lived in that part at the 2020 Census, of 2,121 in all.
- JMJulie MorrisonState Senator, District 29, Democratic1,962 people in this part
- AJAdriane JohnsonState Senator, District 30, Democratic159 people in this part
- BMBob MorganState Representative, District 58, Democratic1,962 people in this part
- RMRita MayfieldState Representative, District 60, Democratic159 people in this part
Knollwood's districts
U.S. House District 10
All of Knollwood
Held by Bradley Scott Schneider, Democratic
- Washington office: (202) 225-4835
About 753,700 people, median household income $107,400.
Largest towns: Waukegan, Northbrook (part), Mundelein and 64 more
Illinois Senate District 29
Part of Knollwood: 1,962 people in 2020
Held by Julie Morrison, Democratic
- Springfield office: (217) 782-3650
- District office: (847) 945-5200
About 217,000 people, median household income $134,900.
Largest towns: Highland Park, Northbrook (part), Wheeling (part) and 19 more
Illinois Senate District 30
Part of Knollwood: 159 people in 2020
Held by Adriane Johnson, Democratic
- Springfield office: (217) 782-8181
- District office: (847) 672-6201
About 215,200 people, median household income $89,700.
Largest towns: Waukegan (part), Buffalo Grove (part), Vernon Hills (part) and 15 more
Illinois House District 58
Part of Knollwood: 1,962 people in 2020
Held by Bob Morgan, Democratic
- Springfield office: (217) 782-0902
- District office: (847) 780-8471
About 109,600 people, median household income $171,400.
Largest towns: Highland Park, Lake Forest, Deerfield (part) and 11 more
Illinois House District 60
Part of Knollwood: 159 people in 2020
Held by Rita Mayfield, Democratic
- Springfield office: (217) 558-1012
- District office: (847) 599-2800
About 106,900 people, median household income $70,100.
Largest towns: Waukegan (part), North Chicago (part), Gurnee (part) and 5 more
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.