Loma Portal leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 68% of adults in Loma Portal typically vote, above the U.S. average of about 62%. Among adults in Loma Portal, ~47% vote Democratic, ~21% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Loma Portal compares
Among neighborhoods within 5 miles, Loma Portal leans more Democratic than 7 of 18 neighbors.
Loma Portal runs about 17 points more Democratic than California as a whole.
Politics vary noticeably by block within Loma Portal. The northwest side is the most Democratic-leaning (D+51) and the east side is the least Democratic-leaning (D+34), a spread of about 17 points.
Why Loma Portal 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 Loma Portal, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 60% of adults in Loma Portal hold a bachelor's degree, about 32 points above the U.S. average of 28%.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Loma Portal, San Diego, CA sits in the top tenth nationally on this measure.
Why turnout in Loma Portal looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in Loma Portal have completed high school, about 12 points above the California average of 86%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Roseville, San Diego, CA D+30
- Ocean Beach, San Diego, CA D+43
- Midtown District, San Diego, CA D+32
- Wooded Area, San Diego, CA D+25
- Mission Hills-San Diego, San Diego, CA D+42
- Moreno Mission, San Diego, CA D+40
- Middletown, San Diego, CA D+47
- Bay Park, San Diego, CA D+30
- Pacific Beach, San Diego, CA D+35
- Park West, San Diego, CA D+54
Neighborhoods with Similar Populations
- Lake Murray, San Diego, CA D+20
- Northwest Omaha, Omaha, NE D+10
- Southwest Raleigh, Raleigh, NC D+47
- Greenbrier West, Chesapeake, VA D+25
- University, Riverside, CA D+29
- Dorchester Heights, Boston, MA D+51
- Olympia Heights, Miami, FL R+40
- Hermosa, Chicago, IL D+44
- Washington Heights, Chicago, IL D+85
- South Phoenix, Phoenix, AZ D+30
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.