99chambers

Iowa House of Representatives seat · lines in effect since 2022

Iowa House District 33

A district of about 29,000 people, 22% Hispanic, 17% of adults with a bachelor's degree. It votes D+27.3 relative to the nation for president.

Ruth Ann Gaines (D) · since Nov 2, 2010Next 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.

D+27.311th most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 33

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 RepresentativesD+42.5

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 33.

Adults with a bachelor's degree17% 2nd pct · 98th of 100 in IA

Lower than 98% of seats.

White adults without a degree46% 20th pct · 80th of 100 in IA

Lower than 80% of seats.

Hispanic residents22% 97th pct · 4th of 100 in IA

Higher than 97% of seats.

Black residents13% 94th pct · 7th of 100 in IA

Higher than 94% of seats.

Asian residents8% 97th pct · 4th of 100 in IA

Higher than 97% of seats.

People per square mile3,746 97th pct · 4th of 100 in IA

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 29
26% Hispanic · 22% college gradsD+18.0Held DDistrict 34
21% Black · 28% college gradsD+49.8Held DDistrict 30
22% college gradsD+19.0Held DDistrict 35
40% college gradsD+39.1Held 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 2022.

  1. Ivette Muhammad (D)
    2027– · Won 2026 by 42.5
  2. Ruth Ann Gaines (D)
    2023–2027 · Won 2022 by 89.7, 2024 by 51.9

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