Village in Lake County, Illinois
Third Lake
Who lives in Third Lake
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 1,100
- Median age
- 52.2 years
- Under 18
- 15%
- 65 and over
- 28%
- Veterans, of adults
- 4%
- Speak another language at home
- 11%
Race and ethnicity
- Hispanic or Latino, of any race
- 12%
- White, not Hispanic
- 82%
- Black, not Hispanic
- under 1%
- Asian, not Hispanic
- 2%
Income and housing
- Median household income
- $150,100
- Below the poverty line
- 2%
- Bachelor's or higher, adults 25+
- 69%
- Owner-occupied homes
- 99%
- Median home value
- $362,000
2024 vote for president
Not counted for Third Lake on its own: its precincts follow township lines, not the town’s. See the figure for Lake County.
Who represents Third Lake
Third Lake's districts
U.S. House District 10
All of Third Lake
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 31
All of Third Lake
Held by Mary Edly-Allen, Democratic
- Springfield office: (217) 782-7353
- District office: (847) 548-5631
About 216,800 people, median household income $102,200.
Largest towns: Round Lake Beach (part), Zion, Grayslake and 22 more
Illinois House District 61
All of Third Lake
Held by Joyce Mason, Democratic
- Springfield office: (217) 782-8151
- District office: (847) 485-9986
About 108,400 people, median household income $96,600.
Largest towns: Zion, Beach Park (part), Gurnee (part) and 12 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.