Village in Monroe County and St. Clair County, Illinois
Dupo
District lines run through Dupo, so who represents you here depends on your street. Search your address to see yours.
Who lives in Dupo
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 3,900
- Median age
- 42.9 years
- Under 18
- 20%
- 65 and over
- 15%
- Veterans, of adults
- 4%
- Speak another language at home
- 2%
Race and ethnicity
- Hispanic or Latino, of any race
- 2%
- White, not Hispanic
- 86%
- Black, not Hispanic
- 6%
- Asian, not Hispanic
- 1%
Income and housing
- Median household income
- $61,600
- Below the poverty line
- 9%
- Bachelor's or higher, adults 25+
- 18%
- Owner-occupied homes
- 65%
- Median home value
- $114,000
2024 vote for president
Not counted for Dupo on its own: its precincts follow township lines, not the town’s. See the figures for Monroe County and St. Clair County.
Represent all of Dupo
Represent part of Dupo
Each represents the part of Dupo inside their district. Under each is how many people lived in that part at the 2020 Census, of 3,996 in all.
Mike BostU.S. Representative, District 12, Republican238 people in this part
Nikki BudzinskiU.S. Representative, District 13, Democratic3,758 people in this part- CBChristopher BeltState Senator, District 57, Democratic3,990 people in this part
- TBTerri BryantState Senator, District 58, Republican6 people in this part
- KSKevin SchmidtState Representative, District 114, Republican3,990 people in this part
- DFDavid FriessState Representative, District 115, Republican6 people in this part
Dupo's districts
U.S. House District 12
Part of Dupo: 238 people in 2020
Held by Mike Bost, Republican
- Washington office: (202) 225-5661
About 746,800 people, median household income $68,500.
Largest towns: O'Fallon (part), Carbondale, Marion and 281 more
U.S. House District 13
Part of Dupo: 3,758 people in 2020
Held by Nikki Budzinski, Democratic
- Washington office: (202) 225-2371
About 747,200 people, median household income $63,100.
Largest towns: Springfield (part), Champaign, Decatur (part) and 91 more
Illinois Senate District 57
Part of Dupo: 3,990 people in 2020
Held by Christopher Belt, Democratic
- Springfield office: (217) 782-5399
- District office: (618) 875-1212
About 214,000 people, median household income $71,000.
Largest towns: Belleville, O'Fallon (part), East St. Louis and 30 more
Illinois Senate District 58
Part of Dupo: 6 people in 2020
Held by Terri Bryant, Republican
- Springfield office: (217) 782-8137
- District office: (618) 684-1100
About 214,600 people, median household income $66,100.
Largest towns: Mount Vernon, Waterloo, Columbia (part) and 85 more
Illinois House District 114
Part of Dupo: 3,990 people in 2020
Held by Kevin Schmidt, Republican
- Springfield office: (217) 782-5951
- District office: (618) 215-1050
About 107,700 people, median household income $71,000.
Largest towns: East St. Louis (part), O'Fallon (part), Cahokia and 24 more
Illinois House District 115
Part of Dupo: 6 people in 2020
Held by David Friess, Republican
- Springfield office: (217) 782-1018
- District office: (618) 282-7284
About 107,600 people, median household income $74,600.
Largest towns: Waterloo, Columbia (part), Murphysboro (part) and 36 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.