Sierra Linda leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 33% of adults in Sierra Linda typically vote, below the U.S. average of about 62%. Among adults in Sierra Linda, ~22% vote Democratic, ~11% Republican, and ~67% don't vote. The map below shows estimated turnout by block group.
How Sierra Linda compares
Among neighborhoods within 5 miles, Sierra Linda leans more Democratic than 8 of 19 neighbors.
Sierra Linda runs about 11 points more Democratic than California as a whole.
Why Sierra Linda 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 Sierra Linda, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Sierra Linda 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 48% of adults in Sierra Linda have never been married, above 79% of neighborhoods.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as Sierra Linda, Oxnard, CA does.
Why turnout in Sierra Linda looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sierra Linda is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 21%, about 11 points above the California average of 10%. Renters vote less often than owners, and about 63% of households in Sierra Linda rent, about 38 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 32% of adults in Sierra Linda report food insecurity, above 86% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Orchard, Oxnard, CA D+31
- Carriage Square, Oxnard, CA D+35
- South Bank, Oxnard, CA D+30
- Rio Lindo, Oxnard, CA D+31
- Wilson, Oxnard, CA D+39
- West Village, Oxnard, CA D+29
- Town Center, Oxnard, CA D+33
- La Colonia, Oxnard, CA D+39
- El Rio, Oxnard, CA D+34
- East Village Oxnard, Oxnard, CA D+24
Neighborhoods with Similar Populations
- Mountainville, Allentown, PA D+12
- Wilson Park, Milwaukee, WI D+17
- Marysville Historic District, Marysville, OH R+21
- Westmore, Orem, UT R+18
- Hillendale, Oregon City, OR Even
- McKinley, Albuquerque, NM D+23
- South Atrisco, South Valley, NM D+20
- Mainland Park, Texas City, TX R+20
- Centerville, Brownsville, PA R+34
- West Edgewood, Indianapolis, IN Even
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.