99chambers

Wisconsin State Assembly seat · lines in effect since 2024

Wisconsin Assembly District 30

A district of about 65,000 people, 47% of adults with a bachelor's degree. It votes R+3.7 relative to the nation for president.

Shannon Zimmerman (R) · since Nov 8, 2016Flipped in 2026Next election Nov 7, 2028The 2026 race →

Where it sits among all 99 seats

Every Wisconsin State Assembly seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+3.752nd most
Democratic
Most DemocraticMost Republican50th seat · the majority lineDistrict 30

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 race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

20242026
U.S. SenateR+4.9No race
Wisconsin State AssemblyR+8.5D+5.9

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 99 seats. Small marks are other seats in Wisconsin. The black marker is District 30.

Adults with a bachelor's degree47% 88th pct · 13th of 99 in WI

Higher than 88% of seats.

White adults without a degree49% 32nd pct · 68th of 99 in WI

Lower than 68% of seats.

Hispanic residents3% 17th pct · 82nd of 99 in WI

Lower than 83% of seats.

Black residents1% 11th pct · 88th of 99 in WI

Lower than 89% of seats.

Asian residents2% 41st pct · 59th of 99 in WI

Lower than 59% of seats.

People per square mile284 51st pct · 49th of 99 in WI

Denser than 51% 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. 1 of the 4 flipped this year.

District 22
51% college gradsR+10.2Held RDistrict 46
39% college gradsD+8.4Held DDistrict 55
37% college gradsR+16.8Held RDistrict 88
36% college gradsD+0.1Flipped D

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

Who has held it

These lines took effect in 2024.

  1. Kevin Knoke (D)
    2027– · Won 2026 by 5.9
  2. Shannon Zimmerman (R)
    2025–2027 · Won 2024 by 8.5

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)