03456 leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% 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 86% of adults in 03456 typically vote, above the U.S. average of about 62%. Among adults in 03456, ~34% vote Democratic, ~52% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How 03456 compares
Among zip codes within 15 miles, 03456 leans more Republican than 13 of 20 neighbors.
03456 runs about 22 points more Republican than New Hampshire as a whole. New Hampshire is roughly evenly split, and 03456 sits clearly on the Republican side.
Why 03456 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 03456, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 85% of households in 03456 are family households, about 18 points above the U.S. average of 67%. 03456 runs against the grain of New Hampshire, a Republican-leaning outlier in a roughly evenly split state.
Population density and Republican lean
Places with low population density tend to lean Republican; 03456, NH sits below the national average on this measure.
Why turnout in 03456 looks the way it does
Homeowners vote more often than renters. About 93% of households in 03456 own their home, about 11 points above the New Hampshire average of 82%. High high-school completion lines up with higher turnout, and about 96% of adults in 03456 have completed high school, above 82% of zip codes. 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.