DeMarest leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 85% of adults in DeMarest typically vote, above the U.S. average of about 62%. Among adults in DeMarest, ~48% vote Democratic, ~37% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How DeMarest compares
Among cities within 25 miles, DeMarest leans more Democratic than 209 of 305 neighbors.
DeMarest runs about 9 points more Democratic than New Jersey as a whole.
Politics vary noticeably by neighborhood within DeMarest. The northwest side is the most Democratic-leaning (D+17) and the southwest side is the least Democratic-leaning (D+7), a spread of about 10 points.
Why DeMarest 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 DeMarest, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 73% of adults in DeMarest hold a bachelor's degree, about 45 points above the U.S. average of 28%. Dense areas vote Democratic, and DeMarest sits in the top fifth on density (about 84%, above 95% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; DeMarest, NJ sits in the top quarter 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 DeMarest looks the way it does
Areas with strong routine healthcare access turn out at higher rates. DeMarest 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 79%, about 19 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in DeMarest own their home, about 19 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in DeMarest have completed high school, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Cresskill, NJ Even
- Closter, NJ D+12
- Alpine, NJ Even
- Haworth, NJ D+10
- Dumont, NJ Even
- Tenafly, NJ D+26
- Harrington Park, NJ D+5
- Norwood, NJ Even
- Bergenfield, NJ D+8
- New Milford, NJ D+3
Cities with Similar Populations
- Windsor, PA R+43
- Ravenel, SC Even
- Scandia, MN R+20
- Chisholm, MN Even
- Shermans Dale, PA R+56
- Argo, AL R+58
- Homestead Meadows North, TX Even
- Margaret, AL R+53
- Earlysville, VA D+9
- Midway, FL D+35
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.