Warren is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 91% of adults in Warren typically vote, above the U.S. average of about 62%. Among adults in Warren, ~44% vote Democratic, ~47% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Warren compares
Among cities within 25 miles, Warren leans more Republican than 151 of 229 neighbors.
Warren runs about 10 points more Republican than New Jersey as a whole.
Politics vary noticeably by neighborhood within Warren. The south side runs the most Democratic (Even) and the northeast side runs the most Republican (R+11), a spread of about 13 points.
Why Warren leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Warren. The lean here lands roughly where demographic data alone would predict.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Warren, NJ does.
Why turnout in Warren looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Warren 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 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Warren have completed high school, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Bernards, NJ D+9
- Martinsville, NJ Even
- Millington, NJ Even
- Dunellen, NJ D+6
- Stirling, NJ R+2
- Middlesex, NJ R+6
- Watchung, NJ D+3
- Basking Ridge, NJ D+11
- Bound Brook, NJ D+17
- North Plainfield, NJ D+31
Cities with Similar Populations
- Amherst, MA D+72
- Milford, NH D+3
- High Ridge, MO R+36
- Clarksdale, MS D+57
- East Syracuse, NY D+8
- Ramsey, NJ Even
- Mccalla, AL R+27
- St. Martinville, LA R+24
- Haysville, KS R+42
- Souderton, PA R+2
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.