99chambers

Wisconsin State Senate seat · lines in effect since 2024

Wisconsin Senate District 17

A district of about 169,000 people, 29% of adults with a bachelor's degree. It votes D+2.4 relative to the nation for president.

Howard Marklein (R) · since Nov 4, 2014Flipped in 2026Next election Nov 5, 2030The 2026 race →

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.

D+2.415th most
Democratic
Most DemocraticMost Republican17th seat · the majority lineDistrict 17

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. SenateD+4.6No race
Wisconsin State SenateNo raceD+7.6

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

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 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 17.

Adults with a bachelor's degree29% 41st pct · 20th of 33 in WI

Lower than 59% of seats.

White adults without a degree66% 81st pct · 7th of 33 in WI

Higher than 81% of seats.

Hispanic residents3% 19th pct · 27th of 33 in WI

Lower than 81% of seats.

Black residents1% 41st pct · 20th of 33 in WI

Lower than 59% of seats.

Asian residents1% 12th pct · 29th of 33 in WI

Lower than 88% of seats.

People per square mile42 9th pct · 30th of 33 in WI

Less dense than 91% 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 14
27% college gradsD+2.3Not up in 2026District 25
27% college gradsR+13.1Held RDistrict 24
25% college gradsR+13.1Not up in 2026District 32
32% college gradsD+3.6Not up in 2026

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. Jenna Jacobson (D)
    2027– · Won 2026 by 7.6

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