03860 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% 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 88% of adults in 03860 typically vote, above the U.S. average of about 62%. Among adults in 03860, ~47% vote Democratic, ~41% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 03860 compares
Among zip codes within 15 miles, 03860 leans more Democratic than 14 of 16 neighbors.
Politically, 03860 sits close to the rest of New Hampshire.
Politics vary noticeably by block within 03860. The north side is the most Democratic-leaning (D+16) and the south side is the least Democratic-leaning (Even), a spread of about 16 points.
Why 03860 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 03860, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 40% of adults in 03860 hold a bachelor's degree, about 12 points above the U.S. average of 28%.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 03860, 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 03860 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03860 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 67%, about 7 points above the U.S. average of 60%. 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.