St. Croix County, Wisconsin

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

Basics

County code (FIPS): 55109
Land area: 722 square miles
Population: 93,536

Federal money spent here

Fiscal year 2026: $627.0 million in federal contracts, grants, loans and other awards for work done in St. Croix County.

Explore on USAspending.gov

Who represents St. Croix County

U.S. Senate (whole state): Tammy Baldwin (Democrat), Ron Johnson (Republican).

U.S. House districts that include part of this county

District	Member	Share of county land
Congressional District 7	Thomas P. Tiffany (Republican)	100%

State senate districts

District	Member	Share of county land
State Senate District 10	Rob Stafsholt (Republican)	100%

State house / assembly districts

District	Member	Share of county land
Assembly District 28	Rob Kreibich (Republican)	80.7%
Assembly District 30	Shannon Zimmerman (Republican)	19.3%

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.