Rotterdam Junction, NY Political Map | Democrat & Republican Areas in Rotterdam Junction

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

Rotterdam Junction leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.

 

About 86% of adults in Rotterdam Junction typically vote, above the U.S. average of about 62%. Among adults in Rotterdam Junction, ~34% vote Democratic, ~52% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.

How Rotterdam Junction compares

Among cities within 25 miles, Rotterdam Junction leans more Republican than 61 of 125 neighbors.

Rotterdam Junction runs about 32 points more Republican than New York as a whole. New York leans Democratic overall, while Rotterdam Junction is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Rotterdam Junction. The southwest side is the most Republican-leaning (R+33) and the east side is the least Republican-leaning (R+19), a spread of about 14 points.

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

Rotterdam Junction votes Republican even though it is densely developed (about 34%, above 82% of cities). State and regional patterns outweigh the Democratic lean that density usually predicts here. Rotterdam Junction runs against the grain of New York, 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; Rotterdam Junction, NY sits in the top quarter 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 Rotterdam Junction looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Rotterdam Junction 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Rotterdam Junction have completed high school, in the top fraction 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 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.