Rock Island County, Illinois
What we have for Rock Island County today, and what is coming.
Basics
- County code (FIPS): 17161
- Land area: 427 square miles
- Population: 144,672
Federal money spent here
Fiscal year 2026: $3.4 billion in federal contracts, grants, loans and other awards for work done in Rock Island County.
Who represents Rock Island 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 17 | Eric Sorensen (Democrat) | 100% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 47 | Neil Anderson (Republican) | 40.9% |
| State Senate District 36 | Mike Halpin (Democratic) | 33.6% |
| State Senate District 37 | Li Arellano (Republican) | 25.5% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State House District 94 | Norine Hammond (Republican) | 40.9% |
| State House District 73 | Ryan Spain (Republican) | 25.5% |
| State House District 72 | Gregg Johnson (Democratic) | 17.1% |
| State House District 71 | Dan Swanson (Republican) | 16.5% |
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.