Bronx, NY Political Map | Democrat & Republican Areas in Bronx

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

Bronx leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.

 

About 42% of adults in Bronx typically vote, below the U.S. average of about 62%. Among adults in Bronx, ~30% vote Democratic, ~12% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.

How Bronx compares

Among cities within 25 miles, Bronx leans more Democratic than 295 of 324 neighbors.

Bronx runs about 31 points more Democratic than New York as a whole.

Politics vary noticeably by neighborhood within Bronx. The northeast side is the most Democratic-leaning (D+70) and the east side is the least Democratic-leaning (D+9), a spread of about 61 points.

Why Bronx 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 Bronx, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Bronx live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 49% of adults in Bronx have never been married, above 98% of cities.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Bronx, NY sits in the top tenth 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 Bronx looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Bronx is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 80% of households in Bronx rent, compared to around 40% in nearby cities. High food insecurity lines up with lower turnout, and about 39% of adults in Bronx report food insecurity, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.

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Sources and methodology

Precinct-level voting records used to fit the model come from New York State Board 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.