South Charlestown leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% 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 84% of adults in South Charlestown typically vote, above the U.S. average of about 62%. Among adults in South Charlestown, ~29% vote Democratic, ~55% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How South Charlestown compares
Among cities within 25 miles, South Charlestown leans more Republican than 94 of 98 neighbors.
South Charlestown runs about 33 points more Republican than New Hampshire as a whole. New Hampshire is roughly evenly split, and South Charlestown sits clearly on the Republican side.
Why South Charlestown leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Charlestown, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In South Charlestown, about 95% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 15% of adults hold a bachelor's degree, about 22 points below the New Hampshire average of 38%. South Charlestown runs against the grain of New Hampshire, a Republican-leaning outlier in a roughly evenly split state.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; South Charlestown, NH sits in the top quarter nationally on this measure.
Why turnout in South Charlestown looks the way it does
Areas with high high-school completion turn out at higher rates. About 99% of adults in South Charlestown have completed high school, about 9 points above the U.S. average of 90%. Homeowners vote more often than renters, and about 91% of households in South Charlestown own their home, about 16 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Walpole, NH R+11
- Bellows Falls, VT D+18
- Langdon, NH R+27
- Drewsville, NH R+16
- North Westminster, VT D+20
- Hemlock Center, NH R+30
- Alstead, NH R+20
- Saxtons River, VT D+37
- Alstead Center, NH R+17
Cities with Similar Populations
- Bacova, VA R+46
- Coal Bluff, AL D+19
- Oxford, WV R+71
- Summit City, CA R+40
- Plainview, OK R+76
- Number Eight, MO R+67
- Randles, MO R+73
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.