Arlington leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 42% of adults in Arlington typically vote, below the U.S. average of about 62%. Among adults in Arlington, ~24% vote Democratic, ~18% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.
How Arlington compares
Among neighborhoods within 5 miles, Arlington leans more Democratic than 14 of 17 neighbors.
Arlington runs about 9 points more Republican than California as a whole.
Why Arlington leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Arlington. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Arlington, Riverside, 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 Arlington looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Arlington is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 30% of adults in Arlington report food insecurity, above 82% of neighborhoods. Low high-school completion lines up with lower turnout, and about 76% of adults in Arlington have completed high school, below 90% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Arlington South, Riverside, CA R+2
- Presidential Park, Riverside, CA D+5
- Ramona, Riverside, CA D+7
- Arlanza, Riverside, CA D+15
- La Sierra, Riverside, CA D+9
- La Sierra Acres, Riverside, CA D+8
- Airport, Riverside, CA D+9
- Arlington Heights, Riverside, CA R+8
- La Sierra South, Riverside, CA Even
- Casablanca, Riverside, CA D+17
Neighborhoods with Similar Populations
- Waialae-Kahala, Honolulu, HI D+27
- Soho, Manhattan, NY D+70
- Cedar Hills-Cedar Mill North, Beaverton, OR D+42
- East Falls, Philadelphia, PA D+75
- Mandell, Chicago, IL D+79
- King, Portland, OR D+82
- Ormewood Park-East Atlanta, Atlanta, GA D+67
- Samoset, Bradenton, FL D+20
- Alamedan Valley, North Valley, NM D+17
- Pleasant Ridge, Cincinnati, OH D+55
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.