99chambers

Iowa House of Representatives seat · lines in effect since 2022

Iowa House District 66

A district of about 34,000 people, 21% of adults with a bachelor's degree. It votes R+30.2 relative to the nation for president.

Steve Bradley (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+30.274th most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 66

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+30.7R+10.9R+18.1

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 66.

Adults with a bachelor's degree21% 16th pct · 84th of 100 in IA

Lower than 84% of seats.

White adults without a degree75% 98th pct · 3rd of 100 in IA

Higher than 98% of seats.

Hispanic residents2% 8th pct · 92nd of 100 in IA

Lower than 92% of seats.

Black residents2% 40th pct · 60th of 100 in IA

Lower than 60% of seats.

Asian residents0% 10th pct · 90th of 100 in IA

Lower than 90% of seats.

People per square mile30 22nd pct · 78th of 100 in IA

Less dense than 78% 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 68
21% college gradsR+28.9Held RDistrict 58
21% college gradsR+31.9Held RDistrict 67
23% college gradsR+32.3Held RDistrict 60
25% college gradsR+28.7Held 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. Steven P. Bradley (R)
    2023– · Won 2022 by 30.7, 2024 by 10.9, 2026 by 18.1

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