Alameda is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.
About more than 99% of adults in Alameda typically vote, above the U.S. average of about 62%. Among adults in Alameda, ~91% vote Democratic, ~9% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How Alameda compares
Among neighborhoods within 5 miles, Alameda leans more Democratic than 33 of 39 neighbors.
Alameda runs about 68 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within Alameda. The northwest side is the most Democratic-leaning (D+88) and the southeast side is the least Democratic-leaning (D+73), a spread of about 14 points.
Why Alameda 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 Alameda, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Alameda live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Alameda sits in the top quarter (about 80%, above 97% of neighborhoods).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Alameda, Portland, OR sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Alameda looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Alameda is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 77%, about 17 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Alameda have completed high school, above 92% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Irvington, Portland, OR D+85
- King, Portland, OR D+82
- Alberta, Portland, OR D+84
- Kerns, Portland, OR D+80
- Eliot, Portland, OR D+79
- Concordia, Portland, OR D+79
- Center, Portland, OR D+80
- Roseway, Portland, OR D+75
- Cully, Portland, OR D+63
- Buckman, Portland, OR D+80
Neighborhoods with Similar Populations
- Naples-Marina Area, Long Beach, CA D+27
- Thomasville, Atlanta, GA D+68
- Midtown-Detroit, Detroit, MI D+73
- Northland Lyceum, Rochester, NY D+41
- Ruby Hill, Denver, CO D+34
- Boulevard Heights, St. Louis, MO D+25
- Song, Irving, TX D+33
- Downtown Troy, Troy, NY D+58
- Prides Crossing, Aurora, CO D+13
- Northwest Los Angeles Heights, San Antonio, TX D+32
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.