Hawaii 12th State Senate 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
79.9%
6,067 votes · D+59.7 · modeled estimate
Runner-up · Barack Obama, 2008 · 71.7%
Republican
Richard Nixon1972
61.3%
6,047 votes · R+22.5 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 53.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
13,994votes
66.5% of the vote · D+34.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 13,052 votes
Republican
Donald Trump2020
6,681votes
31.7% of the vote · D+34.7 · modeled estimate
Runner-up · George W. Bush, 2004 · 6,553 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
+39.0pts D vs U.S.
Place D+42.8 · U.S. D+3.9 · modeled estimate
Runner-up · Barack Obama, 2008 · +37.5 pts
Republican
Richard Nixon1972
−0.6pts R vs U.S.
Place R+22.5 · U.S. R+23.2 · modeled estimate
Runner-up · Gerald Ford, 1976 · −4.0 pts
current representation
Current officeholders
DSharon MoriwakiState Senate · 12
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
69.9%12,318
30.1%5,313
17,631
2020
D
68.9%13,347
31.1%6,025
19,372
2018
D
76.0%7,584
24.0%2,394
9,978
Hawaii 12th State Senate District sits in the Pacific. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 59.7 points in 1964 and a Republican high of 22.5 points in 1972. The 2024 margin was 35.0 points.
A population of 56,390, a 24% non-Hispanic-white share, and a median household income of $75,933 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 13 and State Senate District 11.
Akashic
Political twins — state-senate districts
The state-senate 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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Hawaii 12th State Senate District. Akashic. https://akashic.app/sld-upper/15012/. Accessed May 20, 2026. License: CC BY 4.0.
How did Hawaii 12th State Senate District vote in 2024?
In 2024, Hawaii 12th State Senate District voted Democratic by 35.0 points (D+35.0), carried by the Democratic candidate. Out of 19,603 votes cast, 13,052 went Democratic and 6,188 went Republican.
When did Hawaii 12th State Senate District last vote Republican?
The most recent presidential election in which Hawaii 12th State Senate District voted Republican was 1984.
How many people live in Hawaii 12th State Senate District?
Hawaii 12th State Senate District has a population of 56,390 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Hawaii 12th State Senate District?
Median household income in Hawaii 12th State Senate District is $75,933 — below the national median of $80,734. The Hawaii state median is $100,389.
What is the political history of Hawaii 12th State Senate District?
Akashic tracks 38 presidential elections in Hawaii 12th State Senate District from 1876 to 2024. Of those, 15 went Democratic and 2 went Republican.