Morrow County leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 64% of adults in Morrow County typically vote, near the U.S. average of about 62%. Among adults in Morrow County, ~20% vote Democratic, ~43% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How Morrow County compares
Among counties within 50 miles, Morrow County leans more Republican than 3 of 4 neighbors.
Morrow County runs about 51 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Morrow County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Morrow County. The west side is the most Republican-leaning (R+59) and the northwest side is the least Republican-leaning (R+18), a spread of about 41 points.
Why Morrow County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Morrow County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Morrow County hold a bachelor's degree, about 19 points below the Oregon average of 29%. A high family-household share predicts Republican voting, and about 72% of households in Morrow County are family households, above 88% of counties. Morrow County runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; Morrow County, OR sits in the bottom tenth nationally on this measure.
Why turnout in Morrow County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Morrow County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Umatilla County, OR R+34
- Gilliam County, OR R+48
- Benton County, WA R+21
- Franklin County, WA R+16
- Sherman County, OR R+59
- Walla Walla County, WA R+7
- Yakima County, WA R+6
- Wheeler County, OR R+51
- Klickitat County, WA R+11
- Wasco County, OR R+14
Counties with Similar Populations
- Rolette County, ND D+33
- Rains County, TX R+75
- Newton County, TX R+61
- Union County, IA R+33
- Crawford County, GA R+48
- Todd County, KY R+59
- Glades County, FL R+47
- Edmonson County, KY R+67
- Pike County, IN R+55
- Blackford County, IN R+49
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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.