Wisconsin State Senate seat · lines in effect since 2024
Wisconsin Senate District 28
A district of about 171,000 people, 43% of adults with a bachelor's degree. It votes R+22.5 relative to the nation for president.
2024 election
Nov 5, 2024- Julian Bradley (R) · won63.1%
- Megan Lach (D)36.8%
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
Where it sits among all 33 seats
Every Wisconsin State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1968; the seat changed party 2 times. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2024 | |||
| 2024 | Julian Bradley (R) | Megan Lach (D) | 26.3 |
| Lines first used in 2012 | |||
| 2020 | Julian Bradley (R) | Adam Murphy (D) | 19.3 |
| 2016 | Dave Craig (R) | — | Unopposed |
| 2012 | Mary A. Lazich (R) | Jim Ward (D) | 26.9 |
| Lines first used in 2002 | |||
| 2008 | Mary A. Lazich (R) | — | Unopposed |
| 2004 | Mary A. Lazich (R) | — | Unopposed |
| Lines first used in 1992 | |||
| 2000 | Mary A. Lazich (R)Flip | Kathleen S. Arciszewski (D) | 35.0 |
| 1996 | Lynn S. Adelman (D) | Lisa Soik (R) | 4.1 |
| 1992 | Lynn S. Adelman (D) | Frederick F. Klimetz (R) | 1.0 |
| Lines first used in 1982 | |||
| 1988 | Lynn S. Adelman (D) | John Marangelli (R) | 29.7 |
| 1984 | Lynn S. Adelman (D) | Karen J. Gray (R) | 29.7 |
| Lines first used in 1972 | |||
| 1980 | Lynn S. Adelman (D) | Joseph E. Wimmer (R) | 9.3 |
| 1976 | Lynn S. Adelman (D)Flip | James C. Devitt (R) | 32.5 |
| 1972 | James C. Devitt (R) | Robert Hoskins (D) | 12.1 |
| Lines first used in 1962 | |||
| 1968 | James C. Devitt (R) | Dorothy J. Seeley (D) | 26.1 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 28
The state's districts in other chambers that share residents with this one, and the share of District 28's area in each.
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | |
|---|---|
| President | R+22.1 |
| U.S. Senate | R+22.6 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 33 seats. Small marks are other seats in Wisconsin. The black marker is District 28.
Higher than 78% of seats.
Lower than 66% of seats.
Higher than 66% of seats.
Higher than 53% of seats.
Higher than 50% of seats.
Denser than 66% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 3344% college gradsR+34.3Held RDistrict 11
31% college gradsR+27.8Held RDistrict 1
31% college gradsR+20.5Held RDistrict 19
30% college gradsR+26.0Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET