Stephenson County, Illinois

What we have for Stephenson County today, and what is coming.

Basics

County code (FIPS): 17177
Land area: 564 square miles
Population: 44,630

Federal money spent here

Fiscal year 2026: $339.6 million in federal contracts, grants, loans and other awards for work done in Stephenson County.

Explore on USAspending.gov

Who represents Stephenson 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)	53.9%
Congressional District 16	Darin LaHood (Republican)	46.1%

State senate districts

District	Member	Share of county land
State Senate District 45	Andrew Chesney (Republican)	100%

State house / assembly districts

District	Member	Share of county land
State House District 89	Tony McCombie (Republican)	54.5%
State House District 90	John Cabello (Republican)	45.5%

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.

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.