03872 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% 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 more than 99% of adults in 03872 typically vote, above the U.S. average of about 62%. Among adults in 03872, ~44% vote Democratic, ~61% Republican, and ~-5% don't vote. The map below shows estimated turnout by block group.
How 03872 compares
Among zip codes within 15 miles, 03872 leans more Republican than 5 of 22 neighbors.
03872 runs about 20 points more Republican than New Hampshire as a whole. New Hampshire is roughly evenly split, and 03872 sits clearly on the Republican side.
Why 03872 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 03872, not a ranked or complete list of what matters most.
03872 votes against the grain of New Hampshire. New Hampshire is roughly evenly split, while 03872 runs about 20 points more Republican.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 03872, NH sits in the top tenth nationally on this measure.
Why turnout in 03872 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03872 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in 03872 own their home, about 22 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in 03872 have completed high school, above 83% 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.