Yoncalla leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 80% of adults in Yoncalla typically vote, above the U.S. average of about 62%. Among adults in Yoncalla, ~23% vote Democratic, ~57% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Yoncalla compares
Among cities within 25 miles, Yoncalla leans more Republican than 26 of 27 neighbors.
Yoncalla runs about 56 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Yoncalla is one of the few Republican-leaning pockets.
Why Yoncalla 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 Yoncalla, not a ranked or complete list of what matters most.
Yoncalla votes against the grain of Oregon. Oregon leans Democratic overall, while Yoncalla runs about 56 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in Yoncalla are family households, above 78% of cities.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Yoncalla, OR sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Yoncalla looks the way it does
Turnout in Yoncalla 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.
Nearby Cities
- Drain, OR R+38
- Rice Hill, OR R+44
- London, OR R+24
- Curtin, OR R+30
- Oakland, OR R+37
- Old Town, OR R+38
- Union Gap, OR R+37
- Nonpareil, OR R+36
- Sutherlin, OR R+34
- Latham, OR R+8
Cities with Similar Populations
- Maple Plain, MN R+5
- Townsend, FL R+54
- Laurel Hollow, NY R+15
- Beach Haven, NJ R+6
- North Rose, NY R+33
- Providence, TX R+63
- Clinton, MT R+24
- Oxford, IA R+2
- Tangent, OR R+33
- Vader, WA R+35
All Local Stats
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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.