Bergen County, NJ Political Map | Democrat & Republican Areas in Bergen County

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

Bergen County leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.

 

About 68% of adults in Bergen County typically vote, above the U.S. average of about 62%. Among adults in Bergen County, ~36% vote Democratic, ~32% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.

How Bergen County compares

Among counties within 50 miles, Bergen County leans more Democratic than 10 of 20 neighbors.

Politically, Bergen County sits close to the rest of New Jersey.

Politics vary noticeably by city within Bergen County. The east side runs the most Democratic (D+17) and the southwest side runs the most Republican (R+6), a spread of about 23 points.

Why Bergen County leans the way it does

This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Bergen County, not a ranked or complete list of what matters most.

Dense areas vote Democratic. About 93% of residents in Bergen County live in densely developed areas, about 57 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Bergen County sits in the top quarter (about 53%, above 98% of counties).

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Bergen County, 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 Bergen County looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Bergen County 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 70%, about 10 points above the U.S. average of 60%. 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 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.