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

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

Passaic County is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.

 

About 57% of adults in Passaic County typically vote, near the U.S. average of about 62%. Among adults in Passaic County, ~29% vote Democratic, ~27% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.

How Passaic County compares

Among counties within 50 miles, Passaic County leans more Democratic than 11 of 22 neighbors.

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

Politics vary noticeably by city within Passaic County. The east side runs the most Democratic (D+31) and the west side runs the most Republican (R+17), a spread of about 48 points.

Why Passaic County leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Passaic County. The lean here lands roughly where demographic data alone would predict.

Walkability and Democratic lean

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

Areas with limited routine healthcare access turn out at lower rates. Passaic County 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 Passaic County rent, about 23 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 26% of adults in Passaic County report food insecurity, above 90% of counties. 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.