Dover leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% 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 78% of adults in Dover typically vote, above the U.S. average of about 62%. Among adults in Dover, ~48% vote Democratic, ~30% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Dover compares
Among cities within 25 miles, Dover leans more Democratic than 89 of 96 neighbors.
Dover runs about 19 points more Democratic than New Hampshire as a whole.
Politics vary noticeably by neighborhood within Dover. The east side is the most Democratic-leaning (D+47) and the northwest side is the least Democratic-leaning (Even), a spread of about 46 points.
Why Dover 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 Dover, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 52% of adults in Dover hold a bachelor's degree, about 23 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 36% of adults in Dover have never been married, above 90% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Dover, NH sits in the top tenth nationally on this measure.
Why turnout in Dover looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Dover 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Dover have completed high school, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rollinsford, NH D+4
- Madbury, NH D+12
- Somersworth, NH D+2
- Durham, NH D+47
- South Berwick, ME Even
- Eliot, ME Even
- Berwick, ME R+10
- Newington, NH D+21
- Brixham, ME Even
- Lee, NH Even
Cities with Similar Populations
- Dracut, MA Even
- West Falls Church, VA D+43
- Milford, OH R+29
- Pueblo West, CO R+28
- Des Moines, WA D+31
- Sedalia, MO R+37
- Liberty, MO R+13
- Romulus, MI D+26
- Dublin, GA R+6
- Pineville, LA R+44
All Local Stats
Home Services
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.