Oregon City is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 82% of adults in Oregon City typically vote, above the U.S. average of about 62%. Among adults in Oregon City, ~41% vote Democratic, ~41% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Oregon City compares
Among cities within 25 miles, Oregon City sits roughly in the middle of the political spectrum, with 51 neighbors leaning further in the place's direction and 40 leaning the other way.
Oregon City runs about 14 points more Republican than Oregon as a whole.
Politics vary noticeably by neighborhood within Oregon City. The northwest side runs the most Democratic (D+33) and the southeast side runs the most Republican (R+12), a spread of about 45 points.
Why Oregon City leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Oregon City. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Oregon City, OR sits in the top tenth nationally on this measure.
Why turnout in Oregon City looks the way it does
Turnout in Oregon City 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
- Marylhurst, OR D+34
- Gladstone, OR D+17
- West Linn, OR D+33
- Johnson City, OR D+8
- Oatfield, OR D+24
- Clackamas, OR D+18
- Oak Grove, OR D+37
- Beavercreek, OR R+28
- Viola, OR R+19
- Happy Valley, OR D+20
Cities with Similar Populations
- Chicopee, MA D+7
- Crestview, FL R+36
- Nurillo, TX R+5
- Kyle, TX D+7
- Friendswood, TX R+27
- Horizon West, FL R+7
- Fond Du Lac, WI R+11
- Holladay, UT D+24
- Loveland, OH R+18
- Culver City, CA D+51
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.