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

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

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

 

About 54% of adults in Napili typically vote, below the U.S. average of about 62%. Among adults in Napili, ~30% vote Democratic, ~24% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.

How Napili compares

Among cities within 25 miles, Napili leans more Democratic than 2 of 23 neighbors.

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

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

Areas with many never-married adults vote Democratic. About 39% of adults in Napili have never been married, modestly above similar-sized cities (around 29%). High college attainment predicts Democratic voting, and Napili sits in the top quarter (about 33%, above 79% of cities).

Homeownership and voter turnout

Places with renter-heavy households tend to turn out at a lower rate; Napili, HI sits in the bottom quarter nationally on this measure.

Why turnout in Napili looks the way it does

Crowded housing lines up with lower turnout. About 13% of homes in Napili have more than one occupant per room, above 98% of cities. Strong routine healthcare access lines up with higher turnout, and Napili 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.