Mastic, NY Political Map | Democrat & Republican Areas in Mastic

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

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

 

About 59% of adults in Mastic typically vote, near the U.S. average of about 62%. Among adults in Mastic, ~25% vote Democratic, ~34% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.

How Mastic compares

Among cities within 25 miles, Mastic leans more Republican than 48 of 92 neighbors.

Mastic runs about 28 points more Republican than New York as a whole. New York leans Democratic overall, while Mastic is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Mastic. The northwest side is the most Republican-leaning (R+34) and the southeast side is the least Republican-leaning (R+6), a spread of about 28 points.

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

Mastic votes Republican even though it is densely developed (about 90%, far above the New York 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 83% of households in Mastic are family households, above 94% of cities. Mastic runs against the grain of New York, a Republican-leaning pocket in a Democratic-leaning state.

High-school completion, developed land, and voter turnout

Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as Mastic, NY does.

Why turnout in Mastic looks the way it does

Crowded housing lines up with lower turnout. About 4% of homes in Mastic have more than one occupant per room, above 82% 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 York State Board 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.