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

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

Katonah leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.

 

About 92% of adults in Katonah typically vote, above the U.S. average of about 62%. Among adults in Katonah, ~50% vote Democratic, ~41% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.

How Katonah compares

Among cities within 25 miles, Katonah leans more Democratic than 86 of 141 neighbors.

Politically, Katonah sits close to the rest of New York.

Politics vary noticeably by neighborhood within Katonah. The south side runs the most Democratic (D+28) and the northwest side runs the most Republican (R+13), a spread of about 41 points.

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

Dense areas vote Democratic. About 38% of residents in Katonah live in densely developed areas, above 83% of cities. High college attainment predicts Democratic voting, and Katonah sits in the top quarter (about 76%, in the top fraction of cities).

Population density and Democratic lean

Places with high population density tend to lean Democratic; Katonah, NY sits in the top quarter nationally on this measure.

Why turnout in Katonah looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Katonah 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%. Homeowners vote more often than renters, and about 91% of households in Katonah own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Katonah have completed high school, above 96% 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 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.