Jefferson Westside is a Democratic stronghold. About 86% of voters here vote Democratic and 14% Republican.
About 57% of adults in Jefferson Westside typically vote, near the U.S. average of about 62%. Among adults in Jefferson Westside, ~49% vote Democratic, ~8% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Jefferson Westside compares
Among neighborhoods within 5 miles, Jefferson Westside leans more Democratic than 13 of 16 neighbors.
Jefferson Westside runs about 57 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within Jefferson Westside. The south side is the most Democratic-leaning (D+75) and the east side is the least Democratic-leaning (D+60), a spread of about 14 points.
Why Jefferson Westside leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Jefferson Westside, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Jefferson Westside live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 53% of adults in Jefferson Westside have never been married, above 86% of neighborhoods.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Jefferson Westside, Eugene, 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 Jefferson Westside looks the way it does
Renters vote less often than owners. About 81% of households in Jefferson Westside rent, about 56 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and Jefferson Westside sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- West Eugene, Eugene, OR D+53
- Whiteaker, Eugene, OR D+62
- Friendly, Eugene, OR D+70
- West University, Eugene, OR D+62
- Far West Eugene, Eugene, OR D+46
- South University, Eugene, OR D+74
- Crest Drive, Eugene, OR D+65
- U of O Campus, Eugene, OR D+74
- Fairmount, Eugene, OR D+73
- Churchill, Eugene, OR D+46
Neighborhoods with Similar Populations
- Eiber, Lakewood, CO D+30
- Home Gardens, Corona, CA D+6
- Central City East, Los Angeles, CA D+41
- North Waltham, Waltham, MA D+33
- Buckingham, Arlington, VA D+52
- Natomas Corporate Center, Sacramento, CA D+16
- Nottingham, Katy, TX R+24
- Wickham, Coralville, IA D+34
- Clinton, Lincoln, NE D+32
- Lane-Wooster, Akron, OH D+78
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.