Island City leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 72% of adults in Island City typically vote, above the U.S. average of about 62%. Among adults in Island City, ~19% vote Democratic, ~53% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Island City compares
Among cities within 25 miles, Island City leans more Republican than 4 of 10 neighbors.
Island City runs about 61 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Island City is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Island City. The east side is the most Republican-leaning (R+52) and the southwest side is the least Republican-leaning (R+21), a spread of about 31 points.
Why Island City 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 Island City, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 88% of residents in Island City drive to work alone, about 14 points above the U.S. average of 74%. Island City runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Island City, OR sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Island City looks the way it does
Turnout in Island 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
- La Grande, OR R+21
- Perry, OR R+39
- Cove, OR R+54
- Imbler, OR R+55
- Summerville, OR R+48
- Union, OR R+52
- Elgin, OR R+46
- North Powder, OR R+60
- Lehman Hot Springs, OR R+31
Cities with Similar Populations
- Cleora, OK R+56
- Pleasant City, OH R+61
- East Spencer, NC D+65
- Lenox, IA R+40
- Finger, TN R+75
- Mountain View, WY R+77
- Morris Ranch, TX R+60
- Chappo, CA R+25
- Bear Creek, AL R+80
- Wrightsville, AR D+37
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.