Miller is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 67% of adults in Miller typically vote, near the U.S. average of about 62%. Among adults in Miller, ~15% vote Democratic, ~51% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Miller compares
Among cities within 25 miles, Miller leans more Republican than 46 of 47 neighbors.
Miller runs about 68 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Miller is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Miller. The west side is the most Republican-leaning (R+60) and the southwest side is the least Republican-leaning (R+46), a spread of about 14 points.
Why Miller 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 Miller, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 94% of residents in Miller drive to work alone, about 20 points above the U.S. average of 74%. Miller runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; Miller, OR sits below the national average on this measure.
Why turnout in Miller looks the way it does
Turnout in Miller 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
- Halsey, OR R+56
- Harrisburg, OR R+49
- Lancaster, OR R+26
- Monroe, OR R+18
- Peoria, OR R+30
- Shedd, OR R+51
- Bellfountain, OR R+15
- Union Point, OR R+47
- Junction City, OR R+11
- Horton, OR R+21
Cities with Similar Populations
- Kalae, HI D+16
- Pleasant View, WV R+70
- Flowersville, FL R+63
- Fifty Lakes, MN R+28
- Anabel, MO R+70
- Delchamps, AL R+82
- Jarrott, FL R+23
- Welsh Run, PA R+65
- Saxton, KY R+76
- Reynoldsville, WV R+62
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.