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

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

Pendleton leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.

 

About 67% of adults in Pendleton typically vote, near the U.S. average of about 62%. Among adults in Pendleton, ~23% vote Democratic, ~44% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.

How Pendleton compares

Among cities within 25 miles, Pendleton leans more Republican than 3 of 14 neighbors.

Pendleton runs about 43 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Pendleton is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Pendleton. The west side is the most Republican-leaning (R+43) and the southeast side is the least Republican-leaning (R+8), a spread of about 35 points.

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

Pendleton votes Republican even though it is densely developed (about 50%, well above the Oregon average of 31%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Pendleton runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Pendleton, OR sits in the top tenth 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 Pendleton looks the way it does

Turnout in Pendleton 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.