Wisconsin State Assembly seat · lines in effect since 2024
Wisconsin Assembly District 18
A district of about 56,000 people, 47% Black, 35% of adults with a bachelor's degree. It votes D+67.9 relative to the nation for president.
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.
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 race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | 2026 | |
|---|---|---|
| U.S. Senate | D+66.3 | No race |
| Wisconsin State Assembly | D+64.7 | D+74.0 |
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 18.
Higher than 67% of seats.
Lower than 94% of seats.
Higher than 77% of seats.
Higher than 96% of seats.
Higher than 71% of seats.
Denser than 97% 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 1044% Black · 44% college gradsD+71.1Held DDistrict 17
60% Black · 27% college gradsD+68.9Held DDistrict 16
59% Black · 26% college gradsD+75.4Held DDistrict 11
70% BlackD+76.6Held 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.
- Margaret Arney (D)
2025– · Won 2024 by 64.7, 2026 by 74.0
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)