American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.
Kapaa, HI, Hawaii
Akashic
Kapaa, HIHarrisD+19.5
18922024
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic
58.8%
17,675
Donald TrumpRepublican
39.3%
11,803
Jill SteinG
1.9%
586
D+60R+60
A single county, filled by its 2024 D-vs-R margin. Hover it for the full result.
County-level results (1 county) — table
2024 presidential result by county for Kapaa, HI, HI — winner and D-vs-R margin.
County
Winner
Margin
Kauai County, HI
Democratic
D+19.5
Akashic
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year
Won
Democratic
Republican
Other
Margin
Total
D
58.8%Harris17,675
39.3%Trump11,803
1.9%Stein586
+19.5%
30,064
D
63.4%Biden21,225
34.6%Trump11,582
2.1%Jorgensen690
+28.8%
33,497
D
62.5%Clinton16,456
28.8%Trump7,574
8.8%Johnson2,305
+33.7%
26,335
D
73.5%Obama18,641
24.1%Romney6,121
2.4%Johnson610
+49.3%
25,372
D
75.0%Obama20,416
22.9%McCain6,245
2.1%Nader563
+52.1%
27,224
D
60.0%Kerry14,916
39.2%Bush9,740
0.9%Cobb220
+20.8%
24,876
D
61.9%Gore13,470
30.2%Bush6,583
7.9%Nader1,720
+31.6%
21,773
D
63.5%Clinton13,357
25.3%Dole5,325
11.1%Perot2,338
+38.2%
21,020
D
56.0%Clinton10,715
32.8%Bush6,274
11.2%Perot2,138
+23.2%
19,127
D
58.1%Dukakis11,770
40.9%Bush8,298
1.0%Paul198
+17.1%
20,266
R
48.3%Mondale8,862
50.5%Reagan9,249
1.2%Bergland221
−2.1%
18,332
D
54.6%Carter9,081
35.4%Reagan5,883
10.0%Anderson1,657
+19.2%
16,621
D
55.8%Carter8,105
43.2%Ford6,278
1.0%Macbride139
+12.6%
14,522
R
41.6%McGovern5,401
58.4%Nixon7,571
0.0%
−16.7%
12,972
D
62.1%Humphrey7,051
36.5%Nixon4,140
1.4%Wallace155
+25.7%
11,346
D
81.6%Johnson8,713
18.4%Goldwater1,971
0.0%
+63.1%
10,684
R
45.0%Kennedy4,636
55.0%Nixon5,655
0.0%
−9.9%
10,291
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Akashic
presidential history
Presidential margin, 1960–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1960
−9.9%
1964
+63.1%
1968
+25.7%
1972
−16.7%
1976
+12.6%
1980
+19.2%
1984
−2.1%
1988
+17.1%
1992
+23.2%
1996
+38.2%
2000
+31.6%
2004
+20.8%
2008
+52.1%
2012
+49.3%
2016
+33.7%
2020
+28.8%
2024
+19.5%
DemocraticRepublican
Akashic
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Kapaa, HI
Year
Total registered
2016
44,332
2018
44,461
2020
47,253
2022
48,525
2024
48,139
Source: U.S. Election Assistance Commission (EAVS)
Kapaa, HI sits in the Pacific. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 63.1 points in 1964 and a Republican high of 16.7 points in 1972. Between 2020 and 2024 the metro moved 9.3 points toward the Republican candidate; the 2024 margin was 19.5 points.
A population of 73,731, a 29% non-Hispanic-white share, and a median household income of $97,668 describe the metro. The metro's voting pattern over the last decade is most similar to that of Kahului-Wailuku, HI and Hilo-Kailua, HI.
Akashic
Political twins — metros
The metros 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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Kapaa, HI, Hawaii. Akashic. https://akashic.app/cbsa/28180/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Kapaa, HI, Hawaii voted Democratic by 19.5 points (D+19.5), carried by the Democratic candidate. Out of 30,064 votes cast, 17,675 went Democratic and 11,803 went Republican.
When did Kapaa, HI, Hawaii last vote Republican?
The most recent presidential election in which Kapaa, HI, Hawaii voted Republican was 1984.
How many people live in Kapaa, HI, Hawaii?
Kapaa, HI, Hawaii has a population of 73,731 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Kapaa, HI, Hawaii?
Median household income in Kapaa, HI, Hawaii is $97,668 — above the national median of $80,734. The Hawaii state median is $100,389.
What is the political history of Kapaa, HI, Hawaii?
Akashic tracks 34 presidential elections in Kapaa, HI, Hawaii from 1892 to 2024. Of those, 14 went Democratic and 3 went Republican.