03579 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% 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 82% of adults in 03579 typically vote, above the U.S. average of about 62%. Among adults in 03579, ~25% vote Democratic, ~57% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 03579 compares
03579 runs about 41 points more Republican than New Hampshire as a whole. New Hampshire leans Democratic overall, while 03579 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 03579. The west side is the most Republican-leaning (R+40) and the northeast side is the least Republican-leaning (R+27), a spread of about 13 points.
Why 03579 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 03579, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 03579, about 98% of residents are non-Hispanic white, about 25 points above the U.S. average of 72%; about 15% of adults hold a bachelor's degree, about 23 points below the New Hampshire average of 39%. 03579 runs against the grain of New Hampshire, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 03579, 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 03579 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 03579 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 62%, about 6 points below the New Hampshire average of 68%. Homeowners vote more often than renters, and about 94% of households in 03579 own their home, about 19 points above the U.S. average of 75%. 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.