Bound Brook, NJ Political Map | Democrat & Republican Areas in Bound Brook

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

Bound Brook leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.

 

About 54% of adults in Bound Brook typically vote, below the U.S. average of about 62%. Among adults in Bound Brook, ~31% vote Democratic, ~23% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.

How Bound Brook compares

Among cities within 25 miles, Bound Brook leans more Democratic than 148 of 218 neighbors.

Bound Brook runs about 11 points more Democratic than New Jersey as a whole.

Politics vary noticeably by neighborhood within Bound Brook. The southeast side is the most Democratic-leaning (D+30) and the northeast side is the least Democratic-leaning (D+7), a spread of about 23 points.

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

Dense areas vote Democratic. About 89% of residents in Bound Brook live in densely developed areas, about 52 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Bound Brook sits in the top quarter (about 33%, above 78% of cities). A high never-married share predicts Democratic voting, and about 41% of adults in Bound Brook have never been married, above 94% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Bound Brook, NJ 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 Bound Brook looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Bound Brook 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 48% of households in Bound Brook rent, compared to around 28% in nearby cities. Crowded housing lines up with lower turnout, and about 8% of homes in Bound Brook have more than one occupant per room, above 94% 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 Jersey 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.