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

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

Mantua leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.

 

About 79% of adults in Mantua typically vote, above the U.S. average of about 62%. Among adults in Mantua, ~37% vote Democratic, ~42% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.

How Mantua compares

Among cities within 25 miles, Mantua leans more Republican than 172 of 237 neighbors.

Mantua runs about 12 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Mantua is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Mantua. The north side runs the most Democratic (D+5) and the southwest side runs the most Republican (R+17), a spread of about 21 points.

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

Mantua votes Republican even though it is densely developed (about 63%, about 27 points above the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Mantua 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; Mantua, 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 Mantua looks the way it does

Areas with high high-school completion turn out at higher rates. About 97% of adults in Mantua have completed high school, about 7 points above the U.S. average of 90%. 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.