Madison County, Illinois
What we have for Madison County today, and what is coming.
Basics
- County code (FIPS): 17119
- Land area: 716 square miles
- Population: 265,859
Federal money spent here
Fiscal year 2026: $1.9 billion in federal contracts, grants, loans and other awards for work done in Madison County.
Who represents Madison County
U.S. Senate (whole state): Richard J. Durbin (Democrat), Tammy Duckworth (Democrat).
U.S. House districts that include part of this county
| District | Member | Share of county land |
|---|---|---|
| Congressional District 15 | Mary E. Miller (Republican) | 63.6% |
| Congressional District 13 | Nikki Budzinski (Democrat) | 36.4% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 55 | Jason Plummer (Republican) | 57.1% |
| State Senate District 56 | Erica Harriss (Republican) | 26.9% |
| State Senate District 50 | Jil Tracy (Republican) | 15.4% |
| State Senate District 57 | Christopher Belt (Democratic) | 0.6% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State House District 109 | Charlie Meier (Republican) | 57.1% |
| State House District 111 | Amy Elik (Republican) | 17.4% |
| State House District 100 | C.D. Davidsmeyer (Republican) | 15.4% |
| State House District 112 | Katie Stuart (Democratic) | 9.5% |
| State House District 113 | Jay Hoffman (Democratic) | 0.6% |
Matched by district number using the U.S. Census Bureau 2020 county–district relationship files (land area overlap; districts may have been redrawn since). Your exact district depends on your address: U.S. House · state legislators.
County government
Find the official county website and contacts in the USA.gov local government directory or the National Association of Counties explorer.
Sources: U.S. Census Bureau Gazetteer (county list, public domain); USAspending.gov (U.S. Treasury). Built 2026-11-03 15:28.