03242 leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% 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 70% of adults in 03242 typically vote, above the U.S. average of about 62%. Among adults in 03242, ~40% vote Democratic, ~29% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 03242 compares
Among zip codes within 15 miles, 03242 leans more Democratic than 15 of 16 neighbors.
03242 runs about 14 points more Democratic than New Hampshire as a whole.
Politics vary noticeably by block within 03242. The west side is the most Democratic-leaning (D+18) and the southeast side is the least Democratic-leaning (D+6), a spread of about 12 points.
Why 03242 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 03242, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 51% of adults in 03242 have never been married, well above similar-sized zip codes (around 27%). High college attainment predicts Democratic voting, and 03242 sits in the top quarter (about 39%, above 80% of zip codes).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 03242, NH sits above the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 03242 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03242 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 03242 have completed high school, in the top fraction 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.