07503 leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 39% of adults in 07503 typically vote, below the U.S. average of about 62%. Among adults in 07503, ~21% vote Democratic, ~18% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How 07503 compares
Among zip codes within 15 miles, 07503 leans more Democratic than 92 of 226 neighbors.
Politically, 07503 sits close to the rest of New Jersey.
Politics vary noticeably by block within 07503. The northwest side runs the most Democratic (D+25) and the south side runs the most Republican (R+6), a spread of about 31 points.
Why 07503 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 07503, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 07503 live in densely developed areas, about 62 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 41% of adults in 07503 have never been married, above 89% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 07503, 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 07503 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 07503 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 27%, about 18 points above the New Jersey average of 10%. Renters vote less often than owners, and about 72% of households in 07503 rent, about 47 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 37% of adults in 07503 report food insecurity, above 97% of zip codes. 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.