99chambers

Iowa House of Representatives seat · lines in effect since 2022

Iowa House District 5

A district of about 34,000 people, 23% of adults with a bachelor's degree. It votes R+55.9 relative to the nation for president.

Zach Dieken (R) · since Nov 8, 2022Next election Nov 7, 2028The 2026 race →

Where it sits among all 100 seats

Every Iowa House of Representatives 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+55.998th most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 5

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 House of RepresentativesR+51.8

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 100 seats. Small marks are other seats in Iowa. The black marker is District 5.

Adults with a bachelor's degree23% 30th pct · 70th of 100 in IA

Lower than 70% of seats.

White adults without a degree67% 70th pct · 31st of 100 in IA

Higher than 70% of seats.

Hispanic residents8% 71st pct · 30th of 100 in IA

Higher than 71% of seats.

Black residents2% 43rd pct · 57th of 100 in IA

Lower than 57% of seats.

Asian residents2% 56th pct · 45th of 100 in IA

Higher than 56% of seats.

People per square mile24 14th pct · 86th of 100 in IA

Less dense than 86% 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 3
24% college gradsR+57.0Held RDistrict 7
22% college gradsR+50.4Held RDistrict 24
IowaR+47.0Held RDistrict 56
22% college gradsR+44.2Held R

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. Keith Glienke (R)
    2027– · Won 2026 by 51.8
  2. Zachary M. Dieken (R)
    2023–2027 · Won 2022 by 98.1, 2024 by 55.9

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