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

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

Waimanalo leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.

 

About 53% of adults in Waimanalo typically vote, below the U.S. average of about 62%. Among adults in Waimanalo, ~30% vote Democratic, ~23% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.

How Waimanalo compares

Among cities within 25 miles, Waimanalo leans more Democratic than 16 of 26 neighbors.

Waimanalo runs about 8 points more Republican than Hawaii as a whole.

Politics vary noticeably by neighborhood within Waimanalo. The east side is the most Democratic-leaning (D+19) and the north side is the least Democratic-leaning (D+7), a spread of about 12 points.

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

Areas with many never-married adults vote Democratic. About 35% of adults in Waimanalo have never been married, about 6 points above the U.S. average of 29%.

Food insecurity and voter turnout

Places with high food insecurity tend to turn out at a lower rate; Waimanalo, HI sits in the top quarter nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.

Why turnout in Waimanalo looks the way it does

Areas with high food insecurity turn out at lower rates. About 22% of adults in Waimanalo report food insecurity, about 6 points above the U.S. average of 16%. Strong routine healthcare access lines up with higher turnout, and Waimanalo sits in the top quarter on routine-care measures. 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.