Robertsville, NJ Political Map | Democrat & Republican Areas in Robertsville

By the BestNeighborhood data science team. Last updated May 2026.

Robertsville leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.

 

About 96% of adults in Robertsville typically vote, above the U.S. average of about 62%. Among adults in Robertsville, ~40% vote Democratic, ~56% Republican, and ~4% don't vote. The map below shows estimated turnout by block group.

How Robertsville compares

Among cities within 25 miles, Robertsville leans more Republican than 134 of 194 neighbors.

Robertsville runs about 22 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Robertsville is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Robertsville. The west side is the most Republican-leaning (R+23) and the north side is the least Republican-leaning (R+10), a spread of about 13 points.

Why Robertsville 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 Robertsville, not a ranked or complete list of what matters most.

Robertsville votes Republican even though it is densely developed (about 80%, well above 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 84% of households in Robertsville are family households, above 96% of cities. Robertsville runs against the grain of New Jersey, a Republican-leaning pocket in a Democratic-leaning state.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Robertsville, NJ sits in the top tenth 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 Robertsville looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Robertsville 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%. Homeowners vote more often than renters, and about 91% of households in Robertsville own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Robertsville have completed high school, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.