Valley Junction, OR Political Map | Democrat & Republican Areas in Valley Junction

Valley Junction leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.

 
Valley Junction, OR block-group political-lean map
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About 55% of adults in Valley Junction typically vote, below the U.S. average of about 62%. Among adults in Valley Junction, ~20% vote Democratic, ~35% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.

Valley Junction, OR block-group voter-turnout map
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How Valley Junction compares

Among cities within 25 miles, Valley Junction leans more Republican than 30 of 54 neighbors.

Valley Junction runs about 40 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Valley Junction is one of the few Republican-leaning pockets.

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

Valley Junction votes against the grain of Oregon. Oregon leans Democratic overall, while Valley Junction runs about 40 points more Republican.

Developed land and Republican lean

Places with a rural land-use pattern tend to lean Republican; Valley Junction, OR sits below the national average on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Valley Junction looks the way it does

Turnout in Valley Junction 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.