- Lead
- 3,109
- Total
- 11,798
- vs nation
- D+27.8
Hawaii 51st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,782
- Total
- 13,042
- vs nation
- D+24.5
- Lead
- 3,059
- Total
- 10,185
- vs nation
- D+27.9
- Lead
- 4,151
- Total
- 10,476
- vs nation
- D+35.8
- Lead
- 4,511
- Total
- 10,816
- vs nation
- D+34.4
- Lead
- 354
- Total
- 10,498
- vs nation
- D+5.8
- Lead
- 1,421
- Total
- 9,079
- vs nation
- D+15.1
- Lead
- 2,092
- Total
- 9,122
- vs nation
- D+14.4
Key facts
- 2024 presidential margin
- D+26.4MIT Election Lab
- Population
- 27,7682024 5-year
- Population density
- 1,596 / sq mi2024 5-year · TIGER/Line
- Land area
- 17.4 sq miTIGER/Line
- Median household income
- $150,5322024 5-year
- White (non-Hispanic)
- 29.4%2024 5-year
- Black
- 0.5%2024 5-year
- Hispanic / Latino
- 8.5%2024 5-year
- Peak Democratic margin
- D+57.5 in 1964MIT Election Lab
- Peak Republican margin
- R+26.2 in 1972MIT Election Lab
- Most similar
- State House District 48, HI · twin score 94.3
presidential history
Party record book
Hawaii 51st State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1960–2024 · 17 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
78.7%
4,309 votes · D+57.5 · modeled estimate
Runner-up · Barack Obama, 2008 · 70.0%
Republican
Richard Nixon1972
63.1%
4,642 votes · R+26.2 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 55.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
8,272votes
63.4% of the vote · D+29.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 7,576 votes
Republican
George W. Bush2004
5,033votes
47.9% of the vote · D+3.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 4,893 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
Barack Obama2012
+35.8pts D vs U.S.
Place D+39.6 · U.S. D+3.9 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · +34.9 pts
Republican
Richard Nixon1972
+3.0pts R vs U.S.
Place R+26.2 · U.S. R+23.2 · modeled estimate
Runner-up · Gerald Ford, 1976 · 0.0 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.
Anchored in urban Honolulu, this district has logged double-digit Democratic margins across multiple cycles, reflecting the dense, multiethnic neighborhoods that form the core of Hawaii's legislative majority.
Across the recorded series it reached a Democratic high of 57.5 points in 1964 and a Republican high of 26.2 points in 1972. Between 2020 and 2024 the district moved 2.6 points toward the Republican candidate; the 2024 margin was 26.4 points.
A population of 27,768, a 29% non-Hispanic-white share, and a median household income of $150,532 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 48 and State House District 21.
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 →
Hawaii 51st State House District. Akashic. https://akashic.app/sld-lower/15051/. Accessed May 20, 2026. License: CC BY 4.0.