Winnebago County, Illinois
What we have for Winnebago County today, and what is coming.
Basics
- County code (FIPS): 17201
- Land area: 513 square miles
- Population: 285,350
Federal money spent here
Fiscal year 2026: $2.7 billion in federal contracts, grants, loans and other awards for work done in Winnebago County.
Who represents Winnebago 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 16 | Darin LaHood (Republican) | 75.3% |
| Congressional District 17 | Eric Sorensen (Democrat) | 24.7% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 45 | Andrew Chesney (Republican) | 75.8% |
| State Senate District 34 | Steve Stadelman (Democratic) | 22.7% |
| State Senate District 35 | Dave Syverson (Republican) | 1.5% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State House District 90 | John Cabello (Republican) | 45.5% |
| State House District 89 | Tony McCombie (Republican) | 30.3% |
| State House District 67 | Maurice West (Democratic) | 16.6% |
| State House District 68 | Dave Vella (Democratic) | 6.1% |
| State House District 69 | Joe Sosnowski (Republican) | 1.5% |
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.