99chambers

Iowa House of Representatives seat · lines in effect since 2022

Iowa House District 99

A district of about 30,000 people, 24% of adults with a bachelor's degree. It votes R+7.1 relative to the nation for president.

Matt Rinker (R) · since Nov 8, 2022Flipped in 2026Next 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+7.142nd most
Democratic
Most DemocraticMost Republican51st seat · the majority lineDistrict 99

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+4.4R+11.4D+10.1

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 99.

Adults with a bachelor's degree24% 36th pct · 64th of 100 in IA

Lower than 64% of seats.

White adults without a degree66% 62nd pct · 39th of 100 in IA

Higher than 62% of seats.

Hispanic residents4% 36th pct · 64th of 100 in IA

Lower than 64% of seats.

Black residents6% 78th pct · 23rd of 100 in IA

Higher than 78% of seats.

Asian residents1% 45th pct · 55th of 100 in IA

Lower than 55% of seats.

People per square mile146 53rd pct · 48th of 100 in IA

Denser 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. 2 of the 4 flipped this year.

District 69
20% college gradsR+10.4Flipped DDistrict 59
22% college gradsR+3.9Flipped DDistrict 87
25% college gradsR+20.5Held RDistrict 8
21% college gradsR+25.4Held 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. Jennifer Kirkman (D)
    2027– · Won 2026 by 10.1
  2. Matthew Rinker (R)
    2023–2027 · Won 2022 by 4.4, 2024 by 11.4

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