LaSalle County, Illinois
What we have for LaSalle County today, and what is coming.
Basics
- County code (FIPS): 17099
- Land area: 1,135 square miles
- Population: 109,658
Federal money spent here
Fiscal year 2026: $781.0 million in federal contracts, grants, loans and other awards for work done in LaSalle County.
Who represents LaSalle 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 14 | Lauren Underwood (Democrat) | 61.3% |
| Congressional District 16 | Darin LaHood (Republican) | 38.7% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 38 | Sue Rezin (Republican) | 40.1% |
| State Senate District 53 | Chris Balkema (Republican) | 31.4% |
| State Senate District 37 | Li Arellano (Republican) | 28.5% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State House District 76 | Murri Briel (Democratic) | 29.5% |
| State House District 74 | Brad Fritts (Republican) | 28.5% |
| State House District 106 | Jason Bunting (Republican) | 20% |
| State House District 105 | Dennis Tipsword (Republican) | 11.4% |
| State House District 75 | Jed Davis (Republican) | 10.6% |
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.