Representative
Barbara Dittrich
| Seat | Assembly District 99 |
|---|---|
| Party | Republican |
| Capitol office | Room 317 North · State Capitol |
| Mailing address | State Capitol Room 317 North, P.O. Box 8952, Madison, WI 53708 |
| Capitol phone | 608-237-9199 |
| Legislative assistant | Will Craig, Nicholas Zabloudil |
| Write to | rep.dittrich@legis.wisconsin.gov (official address) |
| Hometown | Oconomowoc |
| Tenure | Serving since January 7, 2019 |
| Term limited | No term limits |
Committees 9
- Assembly Insurance Committee Chair standing
- Assembly Small Business Development Committee Vice chair standing
- Assembly Children and Families Committee standing
- Assembly Education Committee standing
- Assembly Health, Aging and Long-Term Care Committee standing
- Assembly Mental Health and Substance Abuse Prevention Committee standing
- Assembly Rules Committee standing
- Assembly Speaker's Task Force on Protecting Kids Committee task force
- Assembly Workforce Development, Labor and Integrated Employment Committee standing
Bills, 2025 to 2026 session 423 as principal author · 0 as coauthor
- MeasureTitleStatusMomentum
- AB 913Relating to: subtraction for certain income of members of the National Guard and Reserves. (FE)Enacted100
- AJR 10Relating to: the freedom to gather in places of worship during a state of emergency (second consideration).Enacted100
- AJR 102Relating to: prohibiting governmental entity discrimination (second consideration).Enacted100
- AJR 133Relating to: legislative suspension of rules promulgated by state agencies (first consideration).Enacted100
- AB 80Relating to: ratification of the Social Work Licensure Compact. (FE)Enacted100
- AB 373Relating to: creating a refundable individual income tax credit for the parent of a stillbirth and making an…Enacted100
- AB 374Relating to: compliance with the federal Electoral Count Reform Act. (FE)Enacted100
- AB 604Relating to: coverage under the Medical Assistance program for incarcerated individuals. (FE)Enacted100
- AB 918Relating to: required subjects in a human growth and development instructional program. (FE)Enacted100
- AB 923Relating to: creating a civil cause of action for sexual extortion.Enacted100
- AB 957Relating to: Internet crimes against children law enforcement and making an appropriation. (FE)Enacted100
- AB 958Relating to: position authorizations for Internet crimes against children law enforcement. (FE)Enacted100
- AB 964Relating to: Internet crimes against children administrative subpoenas for the crime of sexual extortion when the crime…Enacted100
- AB 966Relating to: requiring the Department of Justice to conduct a public awareness campaign. (FE)Enacted100
- AB 968Relating to: virtual currency kiosks.Enacted100
All 423 bills as principal author ›
Bills and sponsors: Open States bulk data (public domain dedication), 2026-10-public.pgdump; status is read from the official actions. About the momentum score
Effectiveness 2025 to 2026 session
96th percentile
| Bills & joint resolutions authored | 414 |
|---|---|
| … passed committee / chamber / both | 282 / 154 / 104 |
| … became law | 65 |
| Carried in the other chamber (became law) | 0 (0) |
| Points vs. Assembly majority average | 1123 ÷ 427.57 = 2.63 |
| Most-authored topics | Criminal justice & public safety (84), Business, jobs & the economy (70), Health & mental health (69) |
Assembly rankings · How the score works. A count of bill progress, not a judgment of the member's work.
Closest allies co-authorship, 2025 to 2026
Most bills written together
- Jerry O'Connor RAssembly 60 255
- Dave Murphy RAssembly 56 248
- Elijah Behnke RAssembly 6 242
- Dan Knodl RAssembly 24 236
- Rob Kreibich RAssembly 28 227
- Jeff Mursau RAssembly 36 208
- Rick Gundrum RAssembly 58 201
- Chuck Wichgers RAssembly 84 183
- Jim Piwowarczyk RAssembly 98 165
- Will Penterman RAssembly 38 159
“Written together” = 2025 to 2026 session bills and joint resolutions on which both are principal author or coauthor (measures with more than 60 sponsors are left out). Sharing bills does not imply a personal or political alliance.
District 99
- Counties
- Dodge, Jefferson, Waukesha
- Find your district
- Who represents me?
- Senate members sharing a county
- Rob Hutton (5), Jodi Habush Sinykin (8), John Jagler (13), Mark Spreitzer (15), Melissa Ratcliff (16), Dan Feyen (20), Julian Bradley (28), Chris Kapenga (33)
Official district map: see the official Assembly page.
Lobbyist reports naming this member 2025 to 2026
No lobbyist expenditure reports naming this member are in our data.
Registered lobbyists and the organizations they represent are on our sister site, the Wisconsin Lobby Guide.
A reported expenditure is a legal, disclosed activity and does not imply wrongdoing.
Source
Copied from https://docs.legis.wisconsin.gov/2025/legislators/assembly/2877 on November 2, 2026, through Open States people data (CC0), checked against official legislature rosters. Not endorsed by the Wisconsin State Assembly.