99chambers

Iowa State Senate seat · lines in effect since 2022

Iowa Senate District 25

A district of about 62,000 people, 64% of adults with a bachelor's degree. It votes D+30.2 relative to the nation for president.

Herman Quirmbach (D) · since Nov 5, 2002Next election Nov 5, 2030The 2026 race →

Where it sits among all 50 seats

Every Iowa 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+30.25th most
Democratic
Most DemocraticMost Republican26th seat · the majority lineDistrict 25

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.

2026
Iowa State SenateD+43.0

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

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

Who lives here, compared

Grey bars show the spread of all 50 seats. Small marks are other seats in Iowa. The black marker is District 25.

Adults with a bachelor's degree64% 100th pct · 1st of 50 in IA

Highest of 50 seats.

White adults without a degree28% 2nd pct · 49th of 50 in IA

Lower than 98% of seats.

Hispanic residents5% 43rd pct · 29th of 50 in IA

Lower than 57% of seats.

Black residents4% 65th pct · 18th of 50 in IA

Higher than 65% of seats.

Asian residents10% 100th pct · 1st of 50 in IA

Highest of 50 seats.

People per square mile1,159 76th pct · 13th of 50 in IA

Denser than 76% 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 43
56% college gradsD+40.2Held DDistrict 16
53% college gradsD+18.1Not up in 2026District 45
58% college gradsD+55.6Held DDistrict 14
58% college gradsD+0.2Not 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 2022.

  1. Herman C. Quirmbach (D)
    2023– · Won 2022 by 52.1, 2026 by 43.0

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