Beaverton, OR Political Map | Democrat & Republican Areas in Beaverton

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

Beaverton leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.

 

About 70% of adults in Beaverton typically vote, above the U.S. average of about 62%. Among adults in Beaverton, ~49% vote Democratic, ~21% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.

How Beaverton compares

Among cities within 25 miles, Beaverton leans more Democratic than 85 of 89 neighbors.

Beaverton runs about 26 points more Democratic than Oregon as a whole.

Politics vary noticeably by neighborhood within Beaverton. The northeast side is the most Democratic-leaning (D+50) and the southwest side is the least Democratic-leaning (D+31), a spread of about 19 points.

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

Dense areas vote Democratic. About 95% of residents in Beaverton live in densely developed areas, about 59 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Beaverton sits in the top quarter (about 51%, above 94% of cities). A high never-married share predicts Democratic voting, and about 34% of adults in Beaverton have never been married, above 85% of cities.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Beaverton, OR sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in Beaverton looks the way it does

Turnout in Beaverton 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.

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Sources and methodology

Precinct-level voting records used to fit the model come from Oregon Secretary of State, Elections Division, 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. Full methodology and findings: political spectrum map.

Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.