Rosedale, NJ Political Map | Democrat & Republican Areas in Rosedale

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

Rosedale leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.

 

About 82% of adults in Rosedale typically vote, above the U.S. average of about 62%. Among adults in Rosedale, ~52% vote Democratic, ~30% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.

How Rosedale compares

Among cities within 25 miles, Rosedale leans more Democratic than 162 of 186 neighbors.

Rosedale runs about 22 points more Democratic than New Jersey as a whole.

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

Areas with high college attainment vote Democratic. About 81% of adults in Rosedale hold a bachelor's degree, about 53 points above the U.S. average of 28%. Dense areas vote Democratic, and Rosedale sits in the top fifth on density (about 30%, above 80% of cities).

Population density and Democratic lean

Places with high population density tend to lean Democratic; Rosedale, NJ sits in the top quarter nationally on this measure.

Why turnout in Rosedale looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Rosedale 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and more than 99% of households in Rosedale own their home, compared to around 78% in nearby cities. High high-school completion lines up with higher turnout, and about 98% of adults in Rosedale have completed high school, above 94% of cities. 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.