Northfield leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 82% of adults in Northfield typically vote, above the U.S. average of about 62%. Among adults in Northfield, ~36% vote Democratic, ~46% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Northfield compares
Among cities within 25 miles, Northfield leans more Republican than 23 of 89 neighbors.
Northfield runs about 17 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Northfield is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Northfield. The west side is the most Republican-leaning (R+17) and the northeast side is the least Republican-leaning (R+3), a spread of about 13 points.
Why Northfield 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 Northfield, not a ranked or complete list of what matters most.
Northfield votes Republican even though it is densely developed (about 75%, modestly above the New Jersey average of 61%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Northfield runs against the grain of New Jersey, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Northfield, NJ sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Northfield looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Northfield 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pleasantville, NJ D+46
- Linwood, NJ R+7
- Egg Harbor Township, NJ R+4
- Margate City, NJ R+5
- Longport, NJ R+12
- Somers Point, NJ R+5
- Ventnor City, NJ R+4
- Absecon, NJ Even
- Atlantic City, NJ D+40
- Ocean City, NJ R+9
Cities with Similar Populations
- West Liberty, KY R+62
- Delano, MN R+27
- Stewartstown, PA R+43
- Lorena, TX R+52
- Thorofare, NJ Even
- Spotswood, NJ R+22
- Oak Ridge, NC R+18
- Rhinebeck, NY D+33
- Crittenden, KY R+57
- Edgemere, MD R+26
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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.