Mosier is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 62% of adults in Mosier typically vote, near the U.S. average of about 62%. Among adults in Mosier, ~30% vote Democratic, ~32% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Mosier compares
Among cities within 25 miles, Mosier leans more Republican than 13 of 28 neighbors.
Mosier runs about 18 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Mosier is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Mosier. The southwest side runs the most Democratic (D+7) and the northeast side runs the most Republican (R+12), a spread of about 20 points.
Why Mosier 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 Mosier, not a ranked or complete list of what matters most.
Mosier votes against the grain of Oregon. Oregon leans Democratic overall, while Mosier runs about 18 points more Republican.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; Mosier, OR sits in the bottom tenth nationally on this measure.
Why turnout in Mosier looks the way it does
Turnout in Mosier 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
- Chenoweth, OR R+20
- Bingen, WA D+18
- Lyle, WA R+23
- Hood River, OR D+29
- White Salmon, WA D+28
- Underwood, WA D+7
- Dallesport, WA R+33
- The Dalles, OR R+10
- Dee, OR D+3
Cities with Similar Populations
- Pope, MS R+53
- Cowiche, WA R+25
- Quinnesec, MI R+32
- Nissequogue, NY R+20
- Addy, WA R+46
- Winchester, MO D+8
- Metlakatla, AK Even
- Traphill, NC R+69
- Savanna, OK R+65
- Mount Berry, GA R+34
All Local Stats
Home Services
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.