34104 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 71% of adults in 34104 typically vote, above the U.S. average of about 62%. Among adults in 34104, ~29% vote Democratic, ~42% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 34104 compares
Among zip codes within 15 miles, 34104 leans more Republican than 3 of 16 neighbors.
34104 runs about 5 points more Republican than Florida as a whole.
Politics vary noticeably by block within 34104. The northwest side is the most Republican-leaning (R+32) and the southeast side is the least Republican-leaning (R+13), a spread of about 19 points.
Why 34104 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 34104, not a ranked or complete list of what matters most.
34104 votes Republican even though it is densely developed (about 90%, far above the Florida average of 57%). Here an older population outweighs the Democratic lean that density usually predicts.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 34104, FL sits in the top quarter nationally on this measure.
Why turnout in 34104 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 34104 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 61%, below 56% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.