03750 leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% 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 03750 typically vote, above the U.S. average of about 62%. Among adults in 03750, ~57% vote Democratic, ~31% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 03750 compares
Among zip codes within 15 miles, 03750 leans more Democratic than 18 of 27 neighbors.
03750 runs about 27 points more Democratic than New Hampshire as a whole.
Why 03750 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 03750, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 87% of adults in 03750 hold a bachelor's degree, about 58 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 03750, NH sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 03750 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03750 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 79%, about 19 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in 03750 own their home, compared to around 70% in nearby zip codes. High high-school completion lines up with higher turnout, and about 98% of adults in 03750 have completed high school, above 93% 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.