South Middle River, Fort Lauderdale, FL Political Map | Democrat & Republican Areas in South Middle River

By the BestNeighborhood data science team. Last updated May 2026.

South Middle River is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.

 

About 46% of adults in South Middle River typically vote, below the U.S. average of about 62%. Among adults in South Middle River, ~36% vote Democratic, ~10% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.

How South Middle River compares

Among neighborhoods within 5 miles, South Middle River leans more Democratic than 19 of 25 neighbors.

South Middle River runs about 69 points more Democratic than Florida as a whole. Florida leans Republican overall, while South Middle River is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within South Middle River. The south side is the most Democratic-leaning (D+63) and the northeast side is the least Democratic-leaning (D+37), a spread of about 26 points.

Why South Middle River 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 Middle River, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in South Middle River live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 52% of adults in South Middle River have never been married, above 85% of neighborhoods. South Middle River runs against the grain of Florida, a Democratic-leaning pocket in a Republican-leaning state.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; South Middle River, Fort Lauderdale, FL sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in South Middle River looks the way it does

Areas with limited routine healthcare access turn out at lower rates. South Middle River 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 49%, about 8 points below the Florida average of 56%. High-crime urban areas turn out at lower rates, and South Middle River sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.

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.