03435 leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican. These figures are model estimates: New Hampshire did not have precinct-level voting records available for training, so the numbers above come from demographic and health features rather than local ground truth.
About 53% of adults in 03435 typically vote, below the U.S. average of about 62%. Among adults in 03435, ~33% vote Democratic, ~20% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How 03435 compares
Among zip codes within 15 miles, 03435 leans more Democratic than 24 of 25 neighbors.
03435 runs about 24 points more Democratic than New Hampshire as a whole.
Why 03435 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 03435, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 56% of adults in 03435 hold a bachelor's degree, about 28 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 98% of adults in 03435 have never been married, in the top fraction of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 03435, NH sits in the top quarter 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 03435 looks the way it does
Renters vote less often than owners. More than 99% of households in 03435 rent, about 75 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and more than 99% of adults in 03435 have completed high school, in the top fraction of zip codes. High-crime urban areas turn out at lower rates, and 03435 sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from New Hampshire Secretary of State, Elections Division, 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. NH did not have precinct-level voting records available for training, so the figures here come from extrapolation across demographic, health, and land-use features rather than local ground truth. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.