South Miami is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 73% of adults in South Miami typically vote, above the U.S. average of about 62%. Among adults in South Miami, ~38% vote Democratic, ~35% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How South Miami compares
Among cities within 25 miles, South Miami leans more Democratic than 50 of 77 neighbors.
South Miami runs about 17 points more Democratic than Florida as a whole. Florida leans Republican overall, while South Miami is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within South Miami. The northeast side runs the most Democratic (D+29) and the southeast side runs the most Republican (R+9), a spread of about 38 points.
Why South Miami 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 South Miami, not a ranked or complete list of what matters most.
South Miami votes against the grain of Florida. Florida leans Republican overall, while South Miami runs about 17 points more Democratic.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; South Miami, FL sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in South Miami looks the way it does
Areas with limited routine healthcare access turn out at lower rates. South Miami is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Glenvar Heights, FL R+11
- Coral Gables, FL D+3
- Pinecrest, FL R+6
- Coral Terrace, FL R+34
- West Miami, FL R+29
- Sunset, FL R+31
- Westchester, FL R+42
- Kendall, FL R+15
- Shenandoah, FL R+15
- Westwood Lakes, FL R+43
Cities with Similar Populations
- West St. Paul, MN D+27
- Kerman, CA R+6
- Alum Rock, CA D+29
- Sharpsburg, GA R+46
- La Vista, NE R+5
- Bensenville, IL D+8
- Milwaukie, OR D+39
- Oregon, OH R+15
- Fairwood, WA D+31
- Palm River-Clair Mel, FL D+10
Sources and methodology
Precinct-level voting records used to fit the model come from Florida Division of 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.