Port St. Lucie leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 75% of adults in Port St. Lucie typically vote, above the U.S. average of about 62%. Among adults in Port St. Lucie, ~34% vote Democratic, ~40% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Port St. Lucie compares
Among cities within 25 miles, Port St. Lucie leans more Republican than 3 of 21 neighbors.
Port St. Lucie runs about 6 points more Democratic than Florida as a whole.
Politics vary noticeably by neighborhood within Port St. Lucie. The south side runs the most Democratic (Even) and the southeast side runs the most Republican (R+18), a spread of about 19 points.
Why Port St. Lucie 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 Port St. Lucie, not a ranked or complete list of what matters most.
Port St. Lucie votes Republican even though it is densely developed (about 89%, far above the Florida average of 57%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Port St. Lucie, FL sits in the top tenth nationally on this measure.
Why turnout in Port St. Lucie looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Port St. Lucie 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
- Indian River Estates, FL R+34
- Ankona, FL R+42
- Jensen Beach, FL R+29
- Palm City, FL R+33
- Ocean Breeze Park, FL R+31
- Fort Pierce South, FL R+7
- Fort Pierce, FL D+4
- Hutchinson Island South, FL R+27
- Stuart, FL R+23
- Sewalls Point, FL R+31
Cities with Similar Populations
- Moreno Valley, CA D+18
- Eugene, OR D+39
- Santa Rosa, CA D+42
- Spring Valley, NV D+14
- Brownsville, TX Even
- Murfreesboro, TN R+14
- Shreveport, LA D+29
- Bradenton, FL R+14
- Hialeah, FL R+42
- Frisco, TX R+5
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.