Arlington is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 61% of adults in Arlington typically vote, near the U.S. average of about 62%. Among adults in Arlington, ~15% vote Democratic, ~46% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How Arlington compares
Among cities within 25 miles, Arlington leans more Republican than 7 of 10 neighbors.
Arlington runs about 66 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Arlington is one of the few Republican-leaning pockets.
Why Arlington 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 Arlington, not a ranked or complete list of what matters most.
Arlington votes against the grain of Oregon. Oregon leans Democratic overall, while Arlington runs about 66 points more Republican. Rural areas vote Republican, and Arlington sits in the bottom quarter on density (about 3%, below 89% of cities).
Population density and Republican lean
Places with low population density tend to lean Republican; Arlington, OR sits in the bottom tenth nationally on this measure.
Why turnout in Arlington looks the way it does
Turnout in Arlington sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Roosevelt, WA R+46
- Cecil, OR R+42
- Olex, OR R+50
- Morgan, OR R+59
- Mikkalo, OR R+46
- Bickleton, WA R+45
- Wasco, OR R+56
- Rufus, OR R+56
Cities with Similar Populations
- Yankeetown, OH R+65
- Gas, KS R+55
- Falcon Heights, OR R+55
- Gamaliel, AR R+57
- Wentworth, NH Even
- Parkland, OK R+69
- Murray Town, NC R+27
- Cinebar, WA R+43
- Rome Center, MI R+47
- Prairie Home, MO R+60
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.