Captain Cook leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 57% of adults in Captain Cook typically vote, near the U.S. average of about 62%. Among adults in Captain Cook, ~34% vote Democratic, ~23% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Captain Cook compares
Among cities within 25 miles, Captain Cook leans more Democratic than 6 of 9 neighbors.
Captain Cook runs about 5 points more Republican than Hawaii as a whole.
Politics vary noticeably by neighborhood within Captain Cook. The northeast side is the most Democratic-leaning (D+25) and the southwest side is the least Democratic-leaning (D+12), a spread of about 13 points.
Why Captain Cook leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Captain Cook, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 31% of adults in Captain Cook have never been married, modestly above similar-sized cities (around 25%).
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; Captain Cook, HI sits in the bottom quarter nationally on this measure.
Why turnout in Captain Cook looks the way it does
Crowded housing lines up with lower turnout. About 10% of homes in Captain Cook have more than one occupant per room, above 97% of cities. Renters vote less often than owners, and about 28% of households in Captain Cook rent, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Honaunau-Napoopoo, HI D+21
- Kealakekua, HI D+19
- Hookena, HI D+13
- Kahaluu-Keauhou, HI D+17
- Holualoa, HI D+24
- Papa, HI D+14
- Kailua-Kona, HI D+16
- Kalaoa, HI D+15
- Hawaiian Ocean View, HI D+10
- Ocean View, HI D+12
Cities with Similar Populations
- Ottawa Lake, MI R+41
- Ben Wheeler, TX R+75
- Nashville, MI R+39
- Northwest Harwich, MA D+17
- Stroud, OK R+59
- Williamson, WV R+50
- Roseau, MN R+35
- West DeLand, FL R+28
- Vienna, OH R+38
- Clinton, PA R+36
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Hawaii Office of Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Some land-use inputs for Hawaii, including walkability and the environmental-justice index, are estimated rather than measured, so the figures here carry added uncertainty. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.