- Lead
- 119,279
- Total
- 332,589
- vs nation
- R+34.4
Indiana 8th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 112,938
- Total
- 343,974
- vs nation
- R+37.3
- Lead
- 109,242
- Total
- 320,201
- vs nation
- R+36.2
- Lead
- 58,867
- Total
- 310,309
- vs nation
- R+22.8
- Lead
- 9,459
- Total
- 327,068
- vs nation
- R+10.2
- Lead
- 71,854
- Total
- 307,915
- vs nation
- R+20.9
- Lead
- 42,757
- Total
- 282,572
- vs nation
- R+15.7
- Lead
- 4,115
- Total
- 285,219
- vs nation
- R+7.1
Key facts
- 2024 presidential margin
- R+35.9MIT Election Lab
- Population
- 753,9742024 5-year
- Population density
- 93 / sq mi2024 5-year · TIGER/Line
- Land area
- 8,096 sq miTIGER/Line
- Median household income
- $65,1392024 5-year
- White (non-Hispanic)
- 87.7%2024 5-year
- Black
- 4.0%2024 5-year
- Hispanic / Latino
- 3.1%2024 5-year
- Peak Democratic margin
- D+23.4 in 1936MIT Election Lab
- Peak Republican margin
- R+35.9 in 2024MIT Election Lab
- Most similar
- Congressional District 8, MO · twin score 94.5
presidential history
Party record book
Indiana 8th Congressional 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. Roosevelt1936
61.1%
194,383 votes · D+23.4 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 60.6%
Republican
Donald Trump2024
67.1%
223,068 votes · R+35.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 65.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
194,383votes
61.1% of the vote · D+23.4 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 191,451 votes
Republican
Donald Trump2020
225,292votes
65.5% of the vote · R+32.8 · modeled estimate
Runner-up · Donald Trump, 2024 · 223,068 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
James M. Cox1920
+17.6pts D vs U.S.
Place R+8.6 · U.S. R+26.2 · modeled estimate
Runner-up · John W. Davis, 1924 · +17.6 pts
Republican
Donald Trump2020
+37.3pts R vs U.S.
Place R+32.8 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +36.2 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Indiana's 8th stretches across the southwestern corner of the state, where rural and small-city voters have delivered Republican presidential margins exceeding 30 points in back-to-back cycles, making it among the most reliably one-sided districts in the region.
Across the recorded series it reached a Democratic high of 23.4 points in 1936 and a Republican high of 35.9 points in 2024. Between 2020 and 2024 the district moved 3.0 points toward the Republican candidate; the 2024 margin was 35.9 points.
A population of 753,974, a 88% non-Hispanic-white share, and a median household income of $65,139 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 8 and Congressional District 12.
The congressional 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 →
Indiana 8th Congressional District. Akashic. https://akashic.app/cd/1808/. Accessed May 20, 2026. License: CC BY 4.0.