Waiohinu, HI Political Map | Democrat & Republican Areas in Waiohinu

By the BestNeighborhood data science team. Last updated May 2026.

Waiohinu leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.

 

About 63% of adults in Waiohinu typically vote, near the U.S. average of about 62%. Among adults in Waiohinu, ~35% vote Democratic, ~28% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.

How Waiohinu compares

Among cities within 25 miles, Waiohinu leans more Democratic than 2 of 7 neighbors.

Waiohinu runs about 11 points more Republican than Hawaii as a whole.

Politics vary noticeably by neighborhood within Waiohinu. The northwest side is the most Democratic-leaning (D+17) and the south side is the least Democratic-leaning (D+6), a spread of about 11 points.

Why Waiohinu 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 Waiohinu, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 32% of adults in Waiohinu hold a bachelor's degree, above 77% of cities.

High-school completion, uninsured rate, and voter turnout

Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Waiohinu, HI does.

Why turnout in Waiohinu looks the way it does

Turnout in Waiohinu sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.

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.