Jackson leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 87% of adults in Jackson typically vote, above the U.S. average of about 62%. Among adults in Jackson, ~29% vote Democratic, ~58% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Jackson compares
Among cities within 25 miles, Jackson leans more Republican than 147 of 164 neighbors.
Jackson runs about 39 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Jackson is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Jackson. The southwest side is the most Republican-leaning (R+42) and the northwest side is the least Republican-leaning (R+27), a spread of about 14 points.
Why Jackson 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 Jackson, not a ranked or complete list of what matters most.
Jackson votes Republican even though it is densely developed (about 52%, modestly below the New Jersey average of 61%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 76% of households in Jackson are family households, above 78% of cities. Jackson runs against the grain of New Jersey, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Jackson, NJ sits in the top tenth nationally on this measure.
Why turnout in Jackson looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Jackson 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
- Holmansville, NJ R+41
- Georgia, NJ R+30
- Howell, NJ R+25
- Cedar Glen West, NJ R+26
- Lakewood, NJ R+74
- Cassville, NJ R+43
- Francis Mills, NJ R+41
- Ridgeway, NJ R+38
- Leisure Knoll, NJ R+13
- West Freehold, NJ R+16
Cities with Similar Populations
- Yucaipa, CA R+29
- Lufkin, TX R+29
- Kernersville, NC R+14
- Statesboro, GA D+4
- Bensalem, PA D+3
- Goshen, IN R+27
- Mount Prospect, IL D+12
- Commerce City, CO D+4
- Grand Island, NE R+22
- San Jacinto, CA R+3
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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.