Akashic
1892–2024
Akashic
Hawaii 21st State House District
presidential margin
2008D+53.62012D+52.82016D+44.72020D+47.92024D+43.2
full record · 2008 → 2024
D+43.2
2024
median income$122,500U.S. $80,734 · HI $100,389
median age46.3U.S. 39.1 · HI 41
poverty rate10.0%U.S. 12.5% · HI 10.0%
bachelor’s+ (25+)38.5%U.S. 35.6% · HI 36.2%
non-english26.0%U.S. 22.3% · HI 24.7%
race · ethnicity · ancestry
Filipino17.1%
Japanese15.6%
Chinese6.2%
German5.5%
English4.5%
Irish4.4%
Native Hawaiian5.8%
Samoan1.4%
Marshallese0.6%
Mexican2.0%
Puerto Rican2.0%
Spanish0.8%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Honolulu County.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Hawaii 21st State House District

Akashic
Hawaii 21st State House DistrictHarrisD+43.2
2024
2024 presidential margin for Hawaii 21st State House DistrictThe boundary of Hawaii 21st State House District, filled by its 2024 presidential margin (D+43.2), over faint outlines of the counties it is drawn from.Hawaii 21st State House District · D+43.2
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic70.7%7,953
Donald TrumpRepublican27.5%3,090
Jill SteinG1.8%208
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Hawaii 21st State House District — winner and D-vs-R margin.
CountyWinnerMargin
Honolulu County, HIDemocraticD+21.7
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
70.7%Harris7,953
27.5%Trump3,090
1.8%Stein208
+43.2%
11,251
D
73.2%Biden9,379
25.3%Trump3,245
1.4%Jorgensen184
+47.9%
12,808
D
68.9%Clinton6,974
24.2%Trump2,449
6.9%Johnson696
+44.7%
10,119
D
76.4%Obama7,806
23.6%Romney2,412
0.0%
+52.8%
10,218
D
76.0%Obama8,443
22.5%McCain2,494
1.5%Nader169
+53.6%
11,106
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +43.2% in 2024.+43.2%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+53.6%
2012+52.8%
2016+44.7%
2020+47.9%
2024+43.2%
DemocraticRepublican
current representation
Current officeholders
DJackson SayamaState House · 21

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

Anchored in urban Honolulu, this district has posted presidential margins exceeding 40 points in recent cycles, reflecting a dense, heavily Democratic electorate that leaves little competitive space for opposition candidates.

Across the recorded series it reached a Democratic high of 53.6 points in 2008. Between 2020 and 2024 the district moved 4.7 points toward the Republican candidate; the 2024 margin was 43.2 points.

A population of 27,188, a 18% non-Hispanic-white share, and a median household income of $122,500 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 20 and State House District 26.

Political twins — state-house districts

The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

State House District 20
Hawaii
99.2twin score
% Asian2012–2024 trajectory
State House District 26
Hawaii
99.1twin score
% Asian2008–2016 trajectory
State House District 33
Hawaii
98.5twin score
% Asian2008–2016 trajectory

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Hawaii 21st State House District. Akashic. https://akashic.app/sld-lower/15021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Hawaii at the ballot boxAll elections →
Presidentcounty detail2024US Senatestatewide2024Governorstate + county2022US Houseall districts2024

Frequently asked questions

How did Hawaii 21st State House District vote in 2024?
In 2024, Hawaii 21st State House District voted Democratic by 43.2 points (D+43.2), carried by the Democratic candidate. Out of 11,251 votes cast, 7,953 went Democratic and 3,090 went Republican.
How many people live in Hawaii 21st State House District?
Hawaii 21st State House District has a population of 27,188 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Hawaii 21st State House District?
Median household income in Hawaii 21st State House District is $122,500 — above the national median of $80,734. The Hawaii state median is $100,389.
What is the political history of Hawaii 21st State House District?
Akashic tracks 5 presidential elections in Hawaii 21st State House District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.