Pacifica leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 67% of adults in Pacifica typically vote, near the U.S. average of about 62%. Among adults in Pacifica, ~48% vote Democratic, ~19% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Pacifica compares
Among cities within 25 miles, Pacifica leans more Democratic than 23 of 69 neighbors.
Pacifica runs about 23 points more Democratic than California as a whole.
Politics vary noticeably by neighborhood within Pacifica. The northwest side is the most Democratic-leaning (D+52) and the southeast side is the least Democratic-leaning (D+34), a spread of about 18 points.
Why Pacifica 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 Pacifica, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 75% of residents in Pacifica live in densely developed areas, about 39 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Pacifica sits in the top quarter (about 49%, above 93% of cities). A high never-married share predicts Democratic voting, and about 33% of adults in Pacifica have never been married, above 84% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Pacifica, CA sits in the top quarter 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 Pacifica looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Pacifica 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Pacifica have completed high school, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Millbrae Meadows, CA D+33
- San Bruno, CA D+43
- Pedro Valley, CA D+32
- South San Francisco, CA D+43
- Colma, CA D+39
- Daly City, CA D+39
- Millbrae, CA D+40
- Montara, CA D+49
- Brisbane, CA D+50
- Burlingame, CA D+52
Cities with Similar Populations
- Lewiston, ME D+9
- West Babylon, NY R+7
- Cibolo, TX R+11
- Altadena, CA D+59
- Addison, IL D+3
- Fenton, MI R+20
- Stow, OH Even
- Willis, TX R+43
- Bay Shore, NY D+7
- North Bay Village, FL R+5
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.