South Park leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 45% of adults in South Park typically vote, below the U.S. average of about 62%. Among adults in South Park, ~31% vote Democratic, ~14% Republican, and ~55% don't vote. The map below shows estimated turnout by block group.
How South Park compares
Among neighborhoods within 5 miles, South Park leans more Democratic than 10 of 25 neighbors.
South Park runs about 43 points more Democratic than Arizona as a whole. Arizona leans Republican overall, while South Park is one of the few Democratic-leaning pockets.
Why South Park 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 South Park, not a ranked or complete list of what matters most.
South Park votes against the grain of Arizona. Arizona leans Republican overall, while South Park runs about 43 points more Democratic.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; South Park, Tucson, AZ sits in the bottom tenth 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 South Park looks the way it does
Areas with limited routine healthcare access turn out at lower rates. South Park 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 38%, about 17 points below the Arizona average of 54%. Low high-school completion lines up with lower turnout, and about 77% of adults in South Park have completed high school, below 89% of neighborhoods. High-crime urban areas turn out at lower rates, and South Park sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
Neighborhoods with Similar Populations
- Meadow Springs, Richland, WA R+7
- Martens-Carmelita, Mountain View, CA D+38
- Northwest Redlands, Redlands, CA D+14
- Marinwood, San Rafael, CA D+42
- Prairie Point-Wildberry, Kansas City, MO D+6
- Puhi, Lihue, HI D+17
- West Congress, Austin, TX D+57
- Southwest Quadrant, Alexandria, VA D+62
- Rolling Roads, Greensboro, NC D+51
- Bayou St John, New Orleans, LA D+59
Sources and methodology
Precinct-level voting records used to fit the model come from Arizona 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.