Oleander leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 36% of adults in Oleander typically vote, below the U.S. average of about 62%. Among adults in Oleander, ~11% vote Democratic, ~25% Republican, and ~64% don't vote. The map below shows estimated turnout by block group.
How Oleander compares
Among cities within 25 miles, Oleander leans more Republican than 31 of 34 neighbors.
Oleander runs about 57 points more Republican than California as a whole. California leans Democratic overall, while Oleander is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Oleander. The southwest side is the most Republican-leaning (R+39) and the northeast side is the least Republican-leaning (R+14), a spread of about 25 points.
Why Oleander 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 Oleander, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Oleander hold a bachelor's degree, about 24 points below the California average of 35%. Oleander runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Oleander, CA sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Oleander looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Oleander is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 41%, about 21 points below the California average of 62%. Renters vote less often than owners, and about 67% of households in Oleander rent, compared to around 50% in nearby cities. High food insecurity lines up with lower turnout, and about 38% of adults in Oleander report food insecurity, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Raisin, CA R+25
- Burrel, CA R+27
- Rolinda, CA R+31
- Caruthers, CA R+23
- Elm View, CA R+36
- Helm, CA R+21
- Kerman, CA R+6
- Fresno, CA Even
- Monmouth, CA R+26
- Old Fig Garden, CA D+10
Cities with Similar Populations
- Porter, WA R+36
- Plateau, NC R+61
- Foster Creek, NC R+28
- Olivet, IL R+54
- Maysville, IA R+43
- Waterville, MA R+17
- Cleveland, WV R+67
- Gillingham, WI R+28
- Quincy, MS R+84
- Quitman, MO R+66
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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.