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

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

Montville leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.

 

About 93% of adults in Montville typically vote, above the U.S. average of about 62%. Among adults in Montville, ~42% vote Democratic, ~51% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.

How Montville compares

Among cities within 25 miles, Montville leans more Republican than 189 of 278 neighbors.

Montville runs about 15 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Montville is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Montville. The southeast side is the most Republican-leaning (R+15) and the west side is the least Republican-leaning (R+3), a spread of about 11 points.

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

Montville votes Republican even though it is densely developed (about 66%, about 29 points above the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 75% of households in Montville are family households, above 76% of cities. Montville 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; Montville, NJ sits in the top tenth 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 Montville looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Montville 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 77%, about 17 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 96% of households in Montville own their home, compared to around 80% in nearby cities. High high-school completion lines up with higher turnout, and about 98% of adults in Montville have completed high school, above 93% 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.