Dublin leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 56% of adults in Dublin typically vote, below the U.S. average of about 62%. Among adults in Dublin, ~38% vote Democratic, ~18% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How Dublin compares
Among cities within 25 miles, Dublin leans more Democratic than 27 of 58 neighbors.
Dublin runs about 15 points more Democratic than California as a whole.
Why Dublin 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 Dublin, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 72% of residents in Dublin live in densely developed areas, about 36 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Dublin sits in the top quarter (about 70%, in the top fraction of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Dublin, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Dublin looks the way it does
Renters vote less often than owners. About 32% of households in Dublin rent, about 7 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Dublin sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pleasanton, CA D+32
- San Ramon, CA D+34
- Danville, CA D+27
- Livermore, CA D+21
- Sunol, CA D+21
- Fairview, CA D+42
- Diablo, CA D+15
- Castro Valley, CA D+33
- Hayward, CA D+38
- Cherryland, CA D+39
Cities with Similar Populations
- Anderson, IN R+14
- Burlington, NC D+9
- Grand Junction, CO R+11
- Glen Burnie, MD D+17
- Traverse City, MI D+3
- Gary, IN D+70
- Tonawanda, NY D+9
- Lacey, WA D+23
- Union City, CA D+33
- Lehi, UT R+37
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from California Secretary of State, Elections, 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.