- Lead
- 6,737
- Total
- 14,731
- vs nation
- R+44.3
Iowa 12th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,474
- Total
- 15,732
- vs nation
- R+45.6
- Lead
- 6,316
- Total
- 15,164
- vs nation
- R+43.7
- Lead
- 2,463
- Total
- 14,881
- vs nation
- R+20.4
- Lead
- 559
- Total
- 15,257
- vs nation
- R+10.9
- Lead
- 2,950
- Total
- 15,653
- vs nation
- R+16.4
- Lead
- 2,175
- Total
- 14,189
- vs nation
- R+15.8
- Lead
- 203
- Total
- 14,562
- vs nation
- R+9.9
Key facts
- 2024 presidential margin
- R+45.7MIT Election Lab
- Population
- 31,8182024 5-year
- Population density
- 22 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,435 sq miTIGER/Line
- Median household income
- $66,6952024 5-year
- White (non-Hispanic)
- 78.0%2024 5-year
- Black
- 1.4%2024 5-year
- Hispanic / Latino
- 17.2%2024 5-year
- Peak Democratic margin
- D+41.7 in 1932MIT Election Lab
- Peak Republican margin
- R+45.7 in 2024MIT Election Lab
- Most similar
- State House District 5, IA · twin score 94.6
presidential history
Party record book
Iowa 12th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
70.8%
13,316 votes · D+41.7 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 60.7%
Republican
Donald Trump2024
72.2%
10,629 votes · R+45.7 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 71.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1932
13,316votes
70.8% of the vote · D+41.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 12,154 votes
Republican
Dwight D. Eisenhower1952
13,015votes
65.6% of the vote · R+31.9 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 12,220 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Franklin D. Roosevelt1932
+23.9pts D vs U.S.
Place D+41.7 · U.S. D+17.8 · modeled estimate
Runner-up · Al Smith, 1928 · +22.9 pts
Republican
Donald Trump2020
+45.6pts R vs U.S.
Place R+41.2 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2024 · +44.3 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
With a 2024 presidential margin of R+45.7, this rural Iowa district sits at the far end of the state's partisan range, reflecting the broader realignment of small-town and agricultural communities that has reshaped Iowa's political map over the past decade.
Across the recorded series it reached a Democratic high of 41.7 points in 1932 and a Republican high of 45.7 points in 2024. Between 2020 and 2024 the district moved 4.6 points toward the Republican candidate; the 2024 margin was 45.7 points.
A population of 31,818, a 78% non-Hispanic-white share, and a median household income of $66,695 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 5 and State House District 6.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Iowa 12th State House District. Akashic. https://akashic.app/sld-lower/19012/. Accessed May 20, 2026. License: CC BY 4.0.