Lake County, Illinois
What we have for Lake County today, and what is coming.
Basics
- County code (FIPS): 17097
- Land area: 444 square miles
- Population: 714,342
Federal money spent here
Fiscal year 2026: $5.3 billion in federal contracts, grants, loans and other awards for work done in Lake County.
Who represents Lake 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 10 | Bradley Scott Schneider (Democrat) | 77.8% |
| Congressional District 9 | Janice D. Schakowsky (Democrat) | 8.7% |
| Congressional District 5 | Mike Quigley (Democrat) | 8.5% |
| Congressional District 11 | Bill Foster (Democrat) | 4.9% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 31 | Mary Edly-Allen (Democratic) | 31.8% |
| State Senate District 26 | Darby Hills (Republican) | 26.2% |
| State Senate District 30 | Adriane Johnson (Democratic) | 15.7% |
| State Senate District 29 | Julie Morrison (Democratic) | 13.4% |
| State Senate District 32 | Craig Wilcox (Republican) | 12.9% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State House District 61 | Joyce Mason (Democratic) | 20.3% |
| State House District 52 | Marty McLaughlin (Republican) | 17.2% |
| State House District 64 | Tom Weber (Republican) | 12.9% |
| State House District 58 | Bob Morgan (Democratic) | 12.4% |
| State House District 62 | Laura Faver Dias (Democratic) | 11.5% |
| State House District 51 | Nabeela Syed (Democratic) | 8.9% |
| State House District 59 | Dan Didech (Democratic) | 8.2% |
| State House District 60 | Rita Mayfield (Democratic) | 7.5% |
| State House District 57 | Tracy Katz Muhl (Democratic) | 1% |
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.
Coming next for counties: county commission meetings and agendas, county budgets, local ballot measures and election results. We add each one as soon as a public, reliable feed exists for it. Know a good source? Tell us.
Sources: U.S. Census Bureau Gazetteer (county list, public domain); USAspending.gov (U.S. Treasury). Built 2026-11-03 15:28.