- Lead
- 2,968
- Total
- 8,907
- vs nation
- D+34.8
Arkansas 66th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,424
- Total
- 9,993
- vs nation
- D+29.8
- Lead
- 2,903
- Total
- 9,488
- vs nation
- D+28.5
- Lead
- 2,351
- Total
- 9,611
- vs nation
- D+20.6
- Lead
- 2,401
- Total
- 9,752
- vs nation
- D+17.3
- Lead
- 2,213
- Total
- 9,313
- vs nation
- D+26.2
- Lead
- 1,696
- Total
- 7,639
- vs nation
- D+21.7
- Lead
- 2,769
- Total
- 7,771
- vs nation
- D+27.1
Key facts
- 2024 presidential margin
- D+33.3MIT Election Lab
- Population
- 29,5552024 5-year
- Population density
- 212 / sq mi2024 5-year · TIGER/Line
- Land area
- 140 sq miTIGER/Line
- Median household income
- $45,8882024 5-year
- White (non-Hispanic)
- 34.4%2024 5-year
- Black
- 52.4%2024 5-year
- Hispanic / Latino
- 6.4%2024 5-year
- Peak Democratic margin
- D+86.6 in 1936MIT Election Lab
- Peak Republican margin
- R+13.7 in 1972MIT Election Lab
- Most similar
- State House District 72, AR · twin score 99.1
presidential history
Party record book
Arkansas 66th 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. Roosevelt1936
93.3%
777 votes · D+86.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 89.9%
Republican
Richard Nixon1972
56.8%
3,003 votes · R+13.7 · modeled estimate
Runner-up · James A. Garfield, 1880 · 53.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
6,575votes
65.8% of the vote · D+34.3 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 6,087 votes
Republican
Ronald Reagan1984
4,054votes
51.9% of the vote · R+4.7 · modeled estimate
Runner-up · George H. W. Bush, 1988 · 3,679 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
John W. Davis1924
+73.1pts D vs U.S.
Place D+48.0 · U.S. R+25.2 · modeled estimate
Runner-up · James M. Cox, 1920 · +68.3 pts
Republican
Barry Goldwater1964
+6.7pts R vs U.S.
Place D+15.9 · U.S. D+22.6 · modeled estimate
Runner-up · George H. W. Bush, 1988 · −9.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in Little Rock, this district posts presidential margins that stand sharply apart from Arkansas's statewide Republican tilt, reflecting a dense, diverse urban core where Democratic presidential candidates have consistently run well above the state average.
Across the recorded series it reached a Democratic high of 86.6 points in 1936 and a Republican high of 13.7 points in 1972. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 33.3 points.
A population of 29,555, a 34% non-Hispanic-white share, and a median household income of $45,888 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 72 and State House District 65.
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 →
Arkansas 66th State House District. Akashic. https://akashic.app/sld-lower/05066/. Accessed May 20, 2026. License: CC BY 4.0.