03070 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% 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 95% of adults in 03070 typically vote, above the U.S. average of about 62%. Among adults in 03070, ~43% vote Democratic, ~52% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How 03070 compares
Among zip codes within 15 miles, 03070 leans more Republican than 20 of 24 neighbors.
03070 runs about 13 points more Republican than New Hampshire as a whole. New Hampshire is roughly evenly split, and 03070 sits clearly on the Republican side.
Why 03070 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 03070, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in 03070 are family households, about 16 points above the U.S. average of 67%. 03070 runs against the grain of New Hampshire, a Republican-leaning outlier in a roughly evenly split state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 03070, NH sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 03070 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03070 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 88% of households in 03070 own their home, above 81% of zip codes. High high-school completion lines up with higher turnout, and about 97% of adults in 03070 have completed high school, above 90% 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.