South Beaverton leans heavily Democratic by roughly 42 points: about 71% of voters vote Democratic and 29% Republican.
About 84% of adults in South Beaverton typically vote, above the U.S. average of about 62%. Among adults in South Beaverton, ~60% vote Democratic, ~24% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How South Beaverton compares
Among neighborhoods within 5 miles, South Beaverton leans more Democratic than 9 of 20 neighbors.
South Beaverton runs about 27 points more Democratic than Oregon as a whole.
Why South Beaverton leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Beaverton, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 61% of adults in South Beaverton hold a bachelor's degree, about 32 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; South Beaverton, Beaverton, OR sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in South Beaverton looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Beaverton is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in South Beaverton have completed high school, above 88% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Greenway, Beaverton, OR D+43
- Sexton Mountain, Beaverton, OR D+38
- Neighbors Southwest, Beaverton, OR D+42
- Highlands, Beaverton, OR D+38
- Vose, Beaverton, OR D+39
- Bull Mountain, Tigard, OR D+33
- Denny Whitford, Beaverton, OR D+43
- West Beaverton, Beaverton, OR D+39
- Central Beaverton, Beaverton, OR D+48
- Cooper Mountain Aloha South, Beaverton, OR D+28
Neighborhoods with Similar Populations
- Bagley Downs, Vancouver, WA D+20
- Avalon Highlands, Chicago, IL D+84
- Los Angeles Heights-Keystone, San Antonio, TX D+36
- Mount Washington, Pittsburgh, PA D+40
- Crescent Hill, Louisville, KY D+46
- Harvest Bend, Houston, TX D+5
- Twain, Iowa City, IA D+44
- South Coconut Grove, Miami, FL D+26
- Old Seminol Heights, Tampa, FL D+36
- Elvira, Summit, AZ D+40
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.