Madison Park leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 38% of adults in Madison Park typically vote, below the U.S. average of about 62%. Among adults in Madison Park, ~22% vote Democratic, ~16% Republican, and ~62% don't vote. The map below shows estimated turnout by block group.
How Madison Park compares
Among cities within 25 miles, Madison Park leans more Democratic than 136 of 206 neighbors.
Madison Park runs about 11 points more Democratic than New Jersey as a whole.
Why Madison Park 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 Madison Park, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 47% of residents in Madison Park live in densely developed areas, about 10 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 44% of adults in Madison Park have never been married, above 96% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Madison Park, NJ sits in the top tenth nationally on this measure.
Why turnout in Madison Park looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Madison Park 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 more than 99% of households in Madison Park rent, compared to around 35% in nearby cities. High food insecurity lines up with lower turnout, and about 27% of adults in Madison Park report food insecurity, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Parlin, NJ Even
- South Amboy, NJ R+13
- Laurence Harbor, NJ R+14
- Sayreville, NJ D+3
- Cliffwood, NJ D+18
- Matawan, NJ R+9
- Old Bridge, NJ R+14
- Keyport, NJ R+6
- South River, NJ R+13
- Keasbey, NJ D+3
Cities with Similar Populations
- Soso, MS R+51
- Carrollton, IL R+57
- Monroe, VA R+41
- Davenport, WA R+45
- Ponce de Leon, FL R+70
- Rush, NY Even
- Hamersville, OH R+65
- Ranburne, AL R+89
- Moline, MI R+40
- Sistersville, WV R+56
All Local Stats
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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.