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

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

Hillsdale is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.

 

About 88% of adults in Hillsdale typically vote, above the U.S. average of about 62%. Among adults in Hillsdale, ~42% vote Democratic, ~46% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.

How Hillsdale compares

Among cities within 25 miles, Hillsdale leans more Republican than 182 of 291 neighbors.

Hillsdale runs about 10 points more Republican than New Jersey as a whole.

Politics vary noticeably by neighborhood within Hillsdale. The south side runs the most Democratic (Even) and the east side runs the most Republican (R+10), a spread of about 11 points.

Why Hillsdale leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Hillsdale. The lean here lands roughly where demographic data alone would predict.

Food insecurity and voter turnout

Places with low food insecurity tend to turn out at a higher rate; Hillsdale, NJ sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.

Why turnout in Hillsdale looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Hillsdale 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Hillsdale own their home, about 18 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in Hillsdale have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.

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.