Piscataway leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 60% of adults in Piscataway typically vote, near the U.S. average of about 62%. Among adults in Piscataway, ~39% vote Democratic, ~21% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Piscataway compares
Among cities within 25 miles, Piscataway leans more Democratic than 184 of 220 neighbors.
Piscataway runs about 25 points more Democratic than New Jersey as a whole.
Politics vary noticeably by neighborhood within Piscataway. The northeast side is the most Democratic-leaning (D+40) and the northwest side is the least Democratic-leaning (D+19), a spread of about 22 points.
Why Piscataway 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 Piscataway, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 92% of residents in Piscataway live in densely developed areas, about 56 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Piscataway sits in the top quarter (about 54%, above 95% of cities). A high never-married share predicts Democratic voting, and about 42% of adults in Piscataway have never been married, above 95% of cities.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Piscataway, NJ sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Piscataway looks the way it does
Renters vote less often than owners. About 38% of households in Piscataway rent, about 13 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Piscataway sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Middlesex, NJ R+6
- South Plainfield, NJ D+2
- Dunellen, NJ D+6
- South Bound Brook, NJ D+10
- Highland Park, NJ D+45
- East Franklin, NJ D+49
- New Brunswick, NJ D+40
- Edison, NJ D+12
- Bound Brook, NJ D+17
- Somerset, NJ D+38
Cities with Similar Populations
- Petersburg, VA D+46
- Stuart, FL R+23
- Novi, MI D+14
- Leesburg, FL R+20
- Reseda, CA D+24
- Chesterfield, VA D+5
- Hendersonville, NC R+14
- Reynoldsburg, OH D+27
- Titusville, FL R+23
- Altamonte Springs, FL D+7
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.