Unincorporated community in Kendall County, Illinois
Boulder Hill
District lines run through Boulder Hill, so who represents you here depends on your street. Search your address to see yours.
Who lives in Boulder Hill
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 9,000
- Median age
- 37.6 years
- Under 18
- 22%
- 65 and over
- 15%
- Veterans, of adults
- 3%
- Speak another language at home
- 36%
Race and ethnicity
- Hispanic or Latino, of any race
- 44%
- White, not Hispanic
- 49%
- Black, not Hispanic
- 2%
- Asian, not Hispanic
- 2%
Income and housing
- Median household income
- $80,400
- Below the poverty line
- 9%
- Bachelor's or higher, adults 25+
- 19%
- Owner-occupied homes
- 86%
- Median home value
- $239,000
2024 vote for president
Not counted for Boulder Hill on its own: its precincts follow township lines, not the town’s. See the figure for Kendall County.
Represent all of Boulder Hill
Represent part of Boulder Hill
Each represents the part of Boulder Hill inside their district. Under each is how many people lived in that part at the 2020 Census, of 8,394 in all.
Boulder Hill's districts
U.S. House District 14
All of Boulder Hill
Held by Lauren Underwood, Democratic
- Washington office: (202) 225-2976
About 763,800 people, median household income $95,500.
Largest towns: Joliet (part), Aurora (part), Plainfield and 77 more
Illinois Senate District 42
All of Boulder Hill
Held by Linda Holmes, Democratic
- Springfield office: (217) 782-0422
- District office: (630) 820-8650
About 219,200 people, median household income $109,800.
Largest towns: Aurora (part), Oswego (part), Montgomery and 8 more
Illinois House District 83
Part of Boulder Hill: 4,010 people in 2020
Held by Matt Hanson, Democratic
- Springfield office: (217) 782-1486
- District office: (630) 425-3965
About 109,000 people, median household income $106,700.
Largest towns: Aurora (part), Montgomery (part), St. Charles (part) and 7 more
Illinois House District 84
Part of Boulder Hill: 4,384 people in 2020
Held by Stephanie Kifowit, Democratic
- Springfield office: (217) 782-8028
- District office: (630) 585-1308
About 110,200 people, median household income $112,900.
Largest towns: Aurora (part), Naperville (part), Oswego (part) and 2 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.