Kauai County, Hawaii
Precinct data
Results by precinct
34 precincts · 30,063 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -15-0415-04 | 2,135 | 1,631 | 97 | 3,863 | 55.3% | 42.2% | D+13.0 |
|---|---|---|---|---|---|---|---|
| Precinct -17-0217-02 | 1,978 | 1,248 | 45 | 3,271 | 60.5% | 38.2% | D+22.3 |
| Precinct -16-0116-01 | 1,862 | 1,280 | 68 | 3,210 | 58.0% | 39.9% | D+18.1 |
| Precinct -16-0416-04 | 1,637 | 1,092 | 42 | 2,771 | 59.1% | 39.4% | D+19.7 |
| Precinct -17-0117-01 | 1,491 | 1,012 | 54 | 2,557 | 58.3% | 39.6% | D+18.7 |
| Precinct -16-0316-03 | 1,347 | 810 | 43 | 2,200 | 61.2% | 36.8% | D+24.4 |
| Precinct -17-0317-03 | 1,237 | 866 | 36 | 2,139 | 57.8% | 40.5% | D+17.3 |
| Precinct -15-0115-01 | 1,230 | 667 | 47 | 1,944 | 63.3% | 34.3% | D+29.0 |
| Precinct -15-0215-02 | 1,139 | 710 | 51 | 1,900 | 59.9% | 37.4% | D+22.6 |
| Precinct -15-0515-05 | 801 | 523 | 20 | 1,344 | 59.6% | 38.9% | D+20.7 |
| Precinct -17-0517-05 | 756 | 528 | 26 | 1,310 | 57.7% | 40.3% | D+17.4 |
| Precinct -16-0216-02 | 748 | 541 | 18 | 1,307 | 57.2% | 41.4% | D+15.8 |
| Precinct -15-0315-03 | 601 | 428 | 18 | 1,047 | 57.4% | 40.9% | D+16.5 |
| Precinct -17-0417-04 | 509 | 312 | 13 | 834 | 61.0% | 37.4% | D+23.6 |
| Precinct -16-0516-05 | 204 | 127 | 7 | 338 | 60.4% | 37.6% | D+22.8 |
| Precinct -17-0617-06 | 0 | 28 | 0 | 28 | 0.0% | 100.0% | R+100.0 |
| Chiefess Kamakahelei Middle Sch Voting District15_150071504 | 0 | 0 | 0 | 0 | — | — | Even |
| Kalaheo Neighborhood Ctr Voting District15_150071602 | 0 | 0 | 0 | 0 | — | — | Even |
| Kapaa Neighborhood Ctr Voting District15_150071405 | 0 | 0 | 0 | 0 | — | — | Even |
| Kauai War Memorial Conv Hall Voting District15_150071503 | 0 | 0 | 0 | 0 | — | — | Even |
| Kaumakani Neighborhood Ctr Voting District15_150071604 | 0 | 0 | 0 | 0 | — | — | Even |
| Kekaha Neighborhood Ctr Voting District15_150071606 | 0 | 0 | 0 | 0 | — | — | Even |
| Kilauea Elem School Voting District15_150071402 | 0 | 0 | 0 | 0 | — | — | Even |
| Koloa Elem Sch Voting District15_150071601 | 0 | 0 | 0 | 0 | — | — | Even |
| Koloa Neighborhood Center Voting District15_150071505 | 0 | 0 | 0 | 0 | — | — | Even |
| Niihau Elem/High Sch Voting District15_150071607 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 140115_150071401 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 140315_150071403 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 140415_150071404 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 150115_150071501 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 150215_150071502 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District 160315_150071603 | 0 | 0 | 0 | 0 | — | — | Even |
| Voting Districts not defined15_15007ZZZZZZ | 0 | 0 | 0 | 0 | — | — | Even |
| Waimea Neighborhood Ctr Voting District15_150071605 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1960–2024
Democratic minus Republican, by election
| 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% |
U.S. Senate
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 44,332 |
| 2018 | 44,461 |
| 2020 | 47,253 |
| 2022 | 48,525 |
| 2024 | 48,139 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−256 net domestic migration · 2025
Net −1,232 over 2011–2025 · gain loss
Arrivals reported $90,795 in average income, against $84,798 for residents who stayed — 7% higher. (IRS SOI, 2022–23)
The places arrivals came from lean D+16.5 on average — 3.0 points more Republican-leaning than Kauai County, HI itself (D+19.5).
Where arrivals came from lean of each source
- Los Angeles County, CA49D+32.9
- San Diego County, CA41D+16.8
- Orange County, CA32D+2.7
- Clark County, NV26D+2.6
- Maricopa County, AZ23R+3.5
- King County, WA23D+51.3
Where departures went households, 2022–23
- Clark County, NV52
- Los Angeles County, CA36
- San Diego County, CA30
- Orange County, CA29
- King County, WA28
- Maricopa County, AZ23
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −47 |
| 2012 | −22 |
| 2013 | +388 |
| 2014 | +206 |
| 2015 | +120 |
| 2016 | −223 |
| 2017 | −186 |
| 2018 | −26 |
| 2019 | −230 |
| 2021 | +253 |
| 2022 | −434 |
| 2023 | −254 |
| 2024 | −521 |
| 2025 | −256 |
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.
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 county 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 county. The county's voting pattern over the last decade is most similar to that of Maui County and Hawaii County.
The counties 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.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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 →
Kauai County, Hawaii. Akashic. https://akashic.app/county/15007/. Accessed May 20, 2026. License: CC BY 4.0.