Sandown 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 86% of adults in Sandown typically vote, above the U.S. average of about 62%. Among adults in Sandown, ~36% vote Democratic, ~50% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Sandown compares
Among cities within 25 miles, Sandown leans more Republican than 100 of 108 neighbors.
Sandown runs about 18 points more Republican than New Hampshire as a whole. New Hampshire is roughly evenly split, and Sandown sits clearly on the Republican side.
Why Sandown 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 Sandown, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 87% of households in Sandown are family households, about 20 points above the U.S. average of 67%. Sandown runs against the grain of New Hampshire, a Republican-leaning outlier in a roughly evenly split state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Sandown, NH sits in the top quarter 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 Sandown looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sandown 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Sandown have completed high school, above 84% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Danville, NH R+12
- Hampstead, NH Even
- Chester, NH R+10
- East Hampstead, NH Even
- Fremont, NH R+15
- Kingston, NH R+6
- Atkinson, NH Even
- Raymond, NH R+20
- Derry, NH D+4
- West Epping, NH R+12
Cities with Similar Populations
- Bourg, LA R+78
- Bailey, CO R+17
- Southampton, MA Even
- Sergeant Bluff, IA R+30
- Newfane, NY R+33
- Locust Grove, VA R+25
- Wesson, MS R+47
- Tuscola, IL R+44
- Armona, CA R+19
- Vinton, IA R+24
All Local Stats
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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.