Ewa Beach leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 47% of adults in Ewa Beach typically vote, below the U.S. average of about 62%. Among adults in Ewa Beach, ~25% vote Democratic, ~22% Republican, and ~53% don't vote. The map below shows estimated turnout by block group.
How Ewa Beach compares
Among cities within 25 miles, Ewa Beach leans more Democratic than 8 of 33 neighbors.
Ewa Beach runs about 17 points more Republican than Hawaii as a whole.
Why Ewa Beach 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 Ewa Beach, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 32% of adults in Ewa Beach have never been married, above 79% of cities. High college attainment predicts Democratic voting, and Ewa Beach sits in the top quarter (about 31%, above 75% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Ewa Beach, HI sits in the top tenth nationally on this measure.
Why turnout in Ewa Beach looks the way it does
Crowded housing lines up with lower turnout. About 11% of homes in Ewa Beach have more than one occupant per room, above 97% of cities. Strong routine healthcare access lines up with higher turnout, and Ewa Beach sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Honouliuli, HI D+2
- Waipahu, HI D+10
- Hickam Housing, HI D+8
- Kapolei, HI D+7
- Pearl Harbor, HI D+20
- Pearl City, HI D+17
- Halawa, HI D+15
- Aiea, HI D+20
- Nanakuli, HI D+5
Cities with Similar Populations
- Dundalk, MD R+7
- Manassas, VA D+10
- Clayton, NC R+8
- Ames, IA D+27
- Great Falls, MT R+20
- Puyallup, WA Even
- Eastvale, CA Even
- Huntersville, NC D+6
- Cheektowaga, NY D+11
- East Orange, NJ D+80
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.