08520 leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 64% of adults in 08520 typically vote, near the U.S. average of about 62%. Among adults in 08520, ~40% vote Democratic, ~24% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 08520 compares
Among zip codes within 15 miles, 08520 leans more Democratic than 32 of 49 neighbors.
08520 runs about 19 points more Democratic than New Jersey as a whole.
Why 08520 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 08520, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 77% of residents in 08520 live in densely developed areas, about 41 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 08520 sits in the top quarter (about 46%, above 86% of zip codes).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 08520, NJ sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 08520 looks the way it does
Turnout in 08520 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.