99chambers

Iowa House of Representatives seat · lines in effect since 2022

Iowa House District 21

A district of about 33,000 people, 31% of adults with a bachelor's degree. It votes R+22.8 relative to the nation for president.

Brooke Boden (R) · since Nov 3, 2020Next 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+22.860th most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 21

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.

202220242026
Iowa House of RepresentativesR+24.3R+17.4R+7.7

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 21.

Adults with a bachelor's degree31% 63rd pct · 38th of 100 in IA

Higher than 63% of seats.

White adults without a degree64% 57th pct · 44th of 100 in IA

Higher than 57% of seats.

Hispanic residents3% 23rd pct · 77th of 100 in IA

Lower than 77% of seats.

Black residents1% 21st pct · 79th of 100 in IA

Lower than 79% of seats.

Asian residents1% 35th pct · 65th of 100 in IA

Lower than 65% of seats.

People per square mile85 47th pct · 53rd of 100 in IA

Less dense than 53% 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 22
33% college gradsR+20.2Held RDistrict 65
29% college gradsR+24.9Held RDistrict 57
32% college gradsR+27.0Held RDistrict 84
27% college gradsR+26.7Held 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. Brooke Boden (R)
    2023– · Won 2022 by 24.3, 2024 by 17.4, 2026 by 7.7

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