Dayville is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 57% of adults in Dayville typically vote, near the U.S. average of about 62%. Among adults in Dayville, ~14% vote Democratic, ~43% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Dayville compares
Among cities within 25 miles, Dayville leans more Republican than 2 of 4 neighbors.
Dayville runs about 67 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Dayville is one of the few Republican-leaning pockets.
Why Dayville 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 Dayville, not a ranked or complete list of what matters most.
Dayville votes against the grain of Oregon. Oregon leans Democratic overall, while Dayville runs about 67 points more Republican. Rural areas vote Republican, and Dayville sits in the bottom quarter on density (about 2%, below 97% of cities).
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; Dayville, OR sits in the bottom tenth nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Dayville looks the way it does
Turnout in Dayville 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
- Mount Vernon, OR R+50
- Ritter, OR R+49
- Kimberly, OR R+55
- Monument, OR R+59
- Spray, OR R+52
- Suplee, OR R+52
- Long Creek, OR R+59
- John Day, OR R+52
- Canyon City, OR R+51
Cities with Similar Populations
- Oak Ridge, PA R+70
- Ah Gwah Ching, MN R+41
- Railroad, PA R+26
- Alcoa Center, PA R+44
- Pauline, NE R+72
- Maple Valley, IN R+60
- Masters, MO R+66
- Snedekerville, PA R+61
- Boxelder, TX R+76
- Brainard, NY D+12
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.