North Brunswick leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 58% of adults in North Brunswick typically vote, near the U.S. average of about 62%. Among adults in North Brunswick, ~36% vote Democratic, ~22% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How North Brunswick compares
Among cities within 25 miles, North Brunswick leans more Democratic than 167 of 205 neighbors.
North Brunswick runs about 19 points more Democratic than New Jersey as a whole.
Politics vary noticeably by neighborhood within North Brunswick. The west side is the most Democratic-leaning (D+32) and the southeast side is the least Democratic-leaning (D+11), a spread of about 21 points.
Why North Brunswick 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 North Brunswick, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 86% of residents in North Brunswick live in densely developed areas, about 50 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and North Brunswick sits in the top quarter (about 44%, above 90% of cities). A high never-married share predicts Democratic voting, and about 35% of adults in North Brunswick have never been married, above 87% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; North Brunswick, 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 North Brunswick looks the way it does
Renters vote less often than owners. About 42% of households in North Brunswick rent, about 17 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and North Brunswick sits in the bottom quarter on routine-care measures. Crowded housing lines up with lower turnout, and about 7% of homes in North Brunswick have more than one occupant per room, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Milltown, NJ R+8
- East Franklin, NJ D+49
- New Brunswick, NJ D+40
- Franklin Park, NJ D+39
- Somerset, NJ D+38
- Kendall Park, NJ D+17
- East Brunswick, NJ D+4
- Pleasant Plains, NJ D+22
- Highland Park, NJ D+45
- Monmouth Junction, NJ D+23
Cities with Similar Populations
- Bloomfield, NJ D+39
- Los Gatos, CA D+32
- Brooksville, FL R+42
- Los Lunas, NM R+11
- Coachella, CA D+22
- Elkton, MD R+17
- Lumberton, NC R+11
- Hudson, FL R+37
- Fair Oaks, CA D+6
- Dunedin, FL R+10
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.