South Newcastle leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican. These figures are model estimates: Maine 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 South Newcastle typically vote, above the U.S. average of about 62%. Among adults in South Newcastle, ~48% vote Democratic, ~38% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How South Newcastle compares
Among cities within 25 miles, South Newcastle leans more Democratic than 65 of 102 neighbors.
South Newcastle runs about 4 points more Democratic than Maine as a whole.
Why South Newcastle 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 Newcastle, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 41% of adults in South Newcastle hold a bachelor's degree, about 13 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; South Newcastle, ME 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 South Newcastle looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Newcastle 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 97% of adults in South Newcastle have completed high school, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Edgecomb, ME D+10
- Edgecomb, ME D+9
- Walpole, ME D+44
- Wiscasset, ME Even
- Newcastle, ME D+16
- Bristol, ME D+16
- Squirrel Island, ME D+10
- Damariscotta, ME D+8
- Boothbay, ME D+6
- Alna Center, ME D+18
Cities with Similar Populations
- Elgin, TN R+71
- Springbrook, IA R+43
- Camden, IL R+55
- Pronto, AL R+38
- Hamburg, LA R+64
- West, TN R+62
- Grovania, PA R+40
- Hand Valley, AR R+63
- Carthage, AR R+3
- Witch Lake, MI R+20
Sources and methodology
Precinct-level voting records used to fit the model come from Maine Secretary of State, Bureau of Corporations Elections and Commissions, 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. ME 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.