Upper Montclair, NJ Political Map | Democrat & Republican Areas in Upper Montclair

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

Upper Montclair is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.

 

About 88% of adults in Upper Montclair typically vote, above the U.S. average of about 62%. Among adults in Upper Montclair, ~75% vote Democratic, ~13% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.

How Upper Montclair compares

Among cities within 25 miles, Upper Montclair leans more Democratic than 268 of 275 neighbors.

Upper Montclair runs about 65 points more Democratic than New Jersey as a whole.

Politics vary noticeably by neighborhood within Upper Montclair. The north side is the most Democratic-leaning (D+76) and the northeast side is the least Democratic-leaning (D+61), a spread of about 15 points.

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

Areas with high college attainment vote Democratic. About 85% of adults in Upper Montclair hold a bachelor's degree, about 57 points above the U.S. average of 28%. Dense areas vote Democratic, and Upper Montclair sits in the top fifth on density (about 97%, above 98% of cities).

Population density and Democratic lean

Places with high population density tend to lean Democratic; Upper Montclair, NJ sits in the top tenth nationally on this measure.

Why turnout in Upper Montclair looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Upper Montclair 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 78%, about 18 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Upper Montclair have completed high school, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.

All Local Stats

Home Services

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.