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Iowa › Iowa State Senate · November 3, 2026 · Updated Oct 16, 2026

Iowa State Senate District 31

Timi Brown-Powers has no major-party opponent.

Timi Brown-Powers has no major-party opponent.

How this race is decided

Staggered Senate

Senators serve four-year terms; half the seats are on the ballot each election.

The candidates

The district

Lean D+15: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+22.1D+19.9 vs. nation2020 presidentD+22.2D+17.7 vs. nation2024 presidentD+12.5D+14.0 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
64,034
People per km²
447
Adults with a B.A.+
21%
White, no degree
55%of adults
  • White 65%
  • Hispanic 9%
  • Black 17%
  • Asian 3%
  • Other / multiracial 7%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024 President Vote in this district

24,874 two-party votes · D+12.5 · D+14.0 vs. the nation
✓ Kamala Harris (D)56.2%
Donald Trump (R)43.8%

2022

13,702 votes · Uncontested by the other party
✓ Bill Dotzler (D)96.9%
Write-In (—)3.1%

2020 President Vote in this district

27,787 two-party votes · D+22.2 · D+17.7 vs. the nation
✓ Joe Biden (D)61.1%
Donald Trump (R)38.9%

2018 Earlier district lines

14,929 votes · Uncontested by the other party
✓ Bill Dotzler (D)97.6%
Writein (—)2.4%

2016 President Vote in this district

25,844 two-party votes · D+22.1 · D+19.9 vs. the nation
✓ Hillary Clinton (D)61.1%
Donald Trump (R)38.9%

2014 Earlier district lines

13,387 votes · Uncontested by the other party
✓ Bill Dotzler (D)100.0%