- Lead
- 232
- Total
- 13,733
- vs nation
- R+0.2
Iowa 98th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 1,151
- Total
- 14,683
- vs nation
- D+3.4
- Lead
- 1,553
- Total
- 14,141
- vs nation
- D+8.9
- Lead
- 3,428
- Total
- 14,736
- vs nation
- D+19.4
- Lead
- 3,411
- Total
- 14,192
- vs nation
- D+16.8
- Lead
- 1,709
- Total
- 13,196
- vs nation
- D+15.4
- Lead
- 1,709
- Total
- 11,261
- vs nation
- D+14.7
- Lead
- 1,946
- Total
- 10,692
- vs nation
- D+9.7
Key facts
- 2024 presidential margin
- R+1.7MIT Election Lab
- Population
- 31,6962024 5-year
- Population density
- 839 / sq mi2024 5-year · TIGER/Line
- Land area
- 37.8 sq miTIGER/Line
- Median household income
- $63,0362024 5-year
- White (non-Hispanic)
- 73.8%2024 5-year
- Black
- 9.0%2024 5-year
- Hispanic / Latino
- 9.6%2024 5-year
- Peak Democratic margin
- D+50.1 in 1888MIT Election Lab
- Peak Republican margin
- R+39.5 in 1924MIT Election Lab
- Most similar
- State House District 81, IA · twin score 96.6
presidential history
Party record book
Iowa 98th 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
Grover Cleveland1888
74.7%
1,031 votes · D+50.1 · modeled estimate
Runner-up · Grover Cleveland, 1884 · 74.6%
Republican
James A. Garfield1880
59.8%
614 votes · R+21.0 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 56.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2012
8,990votes
61.0% of the vote · D+23.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 8,716 votes
Republican
Donald Trump2024
6,850votes
49.9% of the vote · R+1.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 6,591 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
Grover Cleveland1892
+47.3pts D vs U.S.
Place D+48.9 · U.S. D+1.7 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +22.8 pts
Republican
Calvin Coolidge1924
+14.3pts R vs U.S.
Place R+39.5 · U.S. R+25.2 · modeled estimate
Runner-up · Charles E. Hughes, 1916 · +12.1 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2018 | D | 56.9%6,949 | 43.1%5,266 | 12,215 |
With a 2024 presidential margin of R+1.7 across roughly 31,700 residents, this district sits near the center of Iowa's partisan divide, making it a consistent target for both parties in state legislative races.
Across the recorded series it reached a Democratic high of 50.1 points in 1888 and a Republican high of 39.5 points in 1924. Between 2020 and 2024 the district moved 9.5 points toward the Republican candidate; the 2024 margin was 1.7 points.
A population of 31,696, a 74% non-Hispanic-white share, and a median household income of $63,036 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 81 and State House District 69.
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 98th State House District. Akashic. https://akashic.app/sld-lower/19098/. Accessed May 20, 2026. License: CC BY 4.0.