2024 results by precinct
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 17,675 | 11,803 | 30,064 | |
| 2020 | D | 21,225 | 11,582 | 33,497 | |
| 2016 | D | 16,456 | 7,574 | 26,335 | |
| 2012 | D | 18,641 | 6,121 | 25,372 | |
| 2008 | D | 20,416 | 6,245 | 27,224 | |
| 2004 | D | 14,916 | 9,740 | 24,876 | |
| 2000 | D | 13,470 | 6,583 | 21,773 | |
| 1996 | D | 13,357 | 5,325 | 21,020 | |
| 1992 | D | 10,715 | 6,274 | 19,127 | |
| 1988 | D | 11,770 | 8,298 | 20,266 | |
| 1984 | R | 8,862 | 9,249 | 18,332 | |
| 1980 | D | 9,081 | 5,883 | 16,621 | |
| 1976 | D | 8,105 | 6,278 | 14,522 | |
| 1972 | R | 5,401 | 7,571 | 12,972 | |
| 1968 | D | 7,051 | 4,140 | 11,346 | |
| 1964 | D | 8,713 | 1,971 | 10,684 | |
| 1960 | R | 4,636 | 5,655 | 10,291 | |
| 1956 | — | — | — | — | |
| 1952 | — | — | — | — | |
| 1948 | — | — | — | — | |
| 1944 | — | — | — | — | |
| 1940 | — | — | — | — | |
| 1936 | — | — | — | — | |
| 1932 | — | — | — | — | |
| 1928 | — | — | — | — | |
| 1924 | — | — | — | — | |
| 1920 | — | — | — | — | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 43.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$97,668
Kauai County ranks in the top 5% of US counties.
Kauai County$97,668
Hawaii$100,389
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
9.1%
Children face moderate poverty.
Children under 1818.0%
Working age (18–64)100.0%
Seniors (65+)18.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
0.0%
speak English only
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 53.1% of residents not counted as adherents by any reporting body.
Kauai's small, geographically isolated electorate leans Democratic by roughly 20 points in presidential races, but land use, water rights, and resort development consistently drive local contests more than national partisan cues.
The Democratic margin in Kauai County reached its widest at sixty-three points in 1964. The margin in 2024 was twenty points — still decisive.
Kauai County's loyalty is rooted in its place. Median household income of $97,668, a 30% non-Hispanic-white share, and a population of 73,731 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Maui County and Mora County.
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