South River City is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.
About 66% of adults in South River City typically vote, near the U.S. average of about 62%. Among adults in South River City, ~52% vote Democratic, ~14% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How South River City compares
Among neighborhoods within 5 miles, South River City leans more Democratic than 18 of 35 neighbors.
South River City runs about 70 points more Democratic than Texas as a whole. Texas leans Republican overall, while South River City is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within South River City. The east side is the most Democratic-leaning (D+70) and the northeast side is the least Democratic-leaning (D+45), a spread of about 24 points.
Why South River City 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 River City, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 77% of adults in South River City hold a bachelor's degree, about 48 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 49% of adults in South River City have never been married, above 80% of neighborhoods. South River City runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; South River City, Austin, TX sits above the national average 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 River City looks the way it does
Turnout in South River City sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Bouldin, Austin, TX D+54
- Riverside, Austin, TX D+49
- East Cesar Chavez, Austin, TX D+62
- Saint Edwards, Austin, TX D+57
- Downtown Austin, Austin, TX D+42
- Zilker, Austin, TX D+45
- Parker Lane, Austin, TX D+59
- Galindo, Austin, TX D+54
- Holly, Austin, TX D+62
- Pleasant Valley, Austin, TX D+56
Neighborhoods with Similar Populations
- North Valley, Syracuse, NY D+63
- South Side, Bethlehem, PA D+33
- The Museum District, Richmond, VA D+65
- Memorial Parkway, Katy, TX R+11
- Regency, Jacksonville, FL D+16
- East Richmond, Richmond, CA D+66
- Clarke Square, Milwaukee, WI D+46
- San Jose, Jacksonville, FL D+16
- Rimmon Heights, Manchester, NH D+24
- Inverness, Hoover, AL R+26
Sources and methodology
Precinct-level voting records used to fit the model come from Texas Secretary of State, Elections Division, 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.