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

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

Sunriver leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.

 

About more than 99% of adults in Sunriver typically vote, above the U.S. average of about 62%. Among adults in Sunriver, ~79% vote Democratic, ~41% Republican, and ~-20% don't vote. The map below shows estimated turnout by block group.

How Sunriver compares

Among cities within 25 miles, Sunriver is the most Democratic-leaning.

Sunriver runs about 18 points more Democratic than Oregon as a whole.

Politics vary noticeably by neighborhood within Sunriver. The north side runs the most Democratic (D+39) and the northeast side runs the most Republican (R+23), a spread of about 62 points.

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

Areas with high college attainment vote Democratic. About 70% of adults in Sunriver hold a bachelor's degree, about 41 points above the U.S. average of 28%.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Sunriver, OR sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Sunriver looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Sunriver 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 78%, about 18 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Sunriver own their home, about 17 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 99% of adults in Sunriver have completed high school, above 97% of cities. 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.