Northwest Triangle, York, PA Political Map | Democrat & Republican Areas in Northwest Triangle

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

Northwest Triangle leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.

 

About 46% of adults in Northwest Triangle typically vote, below the U.S. average of about 62%. Among adults in Northwest Triangle, ~32% vote Democratic, ~14% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.

How Northwest Triangle compares

Among neighborhoods within 5 miles, Northwest Triangle leans more Democratic than 6 of 8 neighbors.

Northwest Triangle runs about 41 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Northwest Triangle sits clearly on the Democratic side.

Politics vary noticeably by block within Northwest Triangle. The south side is the most Democratic-leaning (D+48) and the northeast side is the least Democratic-leaning (D+33), a spread of about 15 points.

Why Northwest Triangle leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Northwest Triangle, not a ranked or complete list of what matters most.

Northwest Triangle votes against the grain of Pennsylvania. Pennsylvania is roughly evenly split, while Northwest Triangle runs about 41 points more Democratic. A high never-married share predicts Democratic voting, and about 58% of adults in Northwest Triangle have never been married, above 91% of neighborhoods.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Northwest Triangle, York, PA 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 Northwest Triangle looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Northwest Triangle is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 46%, about 17 points below the Pennsylvania average of 64%. Renters vote less often than owners, and about 74% of households in Northwest Triangle rent, compared to around 47% in nearby neighborhoods. High-crime urban areas turn out at lower rates, and Northwest Triangle sits in the top 15% on a violent-crime measure. 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 Pennsylvania Department of State, Bureau 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.