Wisconsin's 4th Congressional District (WI-4)
Last updated · 5 sources
Gwen Moore, a Democrat, has represented the district since 2005.
The district includes part of Milwaukee County.
According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 725,486, a median household income of $60,201, and a median age of 34. Of residents 25 and older, 34.1% hold a bachelor's degree or higher.
Representative

2026 election
Moore has filed with the FEC to run for this seat in 2026. 3 candidates for the seat have reported receipts to the FEC.
3 candidates have reported raising money for the 2026 WI-4 race to the FEC.
Election Day: Tuesday, November 3, 2026
| Candidate | Party | Raised | Cash on hand | Through |
|---|---|---|---|---|
| Gwen Moore (incumbent) | Democratic | $1,070,659 | $28,561 | Jul 22 |
| Amy Donahue | Democratic | $18,410 | $1,646 | Jul 22 |
| Purnima Nath | Republican | $1,925 | $5,479 | Jul 22 |
Includes primary candidates; FEC filings do not record primary results. FEC race page
District profile
- Population
- 725,486
- Median household income
- $60,201
- Median age
- 34
- Bachelor's degree or higher
- 34.1%
Census Bureau, 2020–2024 American Community Survey 5-year estimates
Wisconsin senators
Ron JohnsonU.S. Senator for Wisconsin · Republican
Tammy BaldwinU.S. Senator for Wisconsin · Democrat
Neighboring districts
Sources
- District boundaries (Census Bureau cartographic boundary file, 119th Congress) · retrieved Oct 2, 2026
- Counties by district (Census Bureau relationship file) · retrieved Oct 2, 2026
- District profile (Census Bureau, 2020–2024 American Community Survey 5-year estimates) · retrieved Oct 2, 2026
- congress-legislators (member data, CC0) · retrieved Oct 2, 2026
- Candidates and totals (Federal Election Commission) · retrieved Oct 2, 2026