Biddeford 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 68% of adults in Biddeford typically vote, above the U.S. average of about 62%. Among adults in Biddeford, ~38% vote Democratic, ~30% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Biddeford compares
Among cities within 25 miles, Biddeford leans more Democratic than 49 of 65 neighbors.
Biddeford runs about 5 points more Democratic than Maine as a whole.
Politics vary noticeably by neighborhood within Biddeford. The north side runs the most Democratic (D+30) and the northwest side runs the most Republican (R+24), a spread of about 54 points.
Why Biddeford 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 Biddeford, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 42% of adults in Biddeford have never been married, well above similar-sized cities (around 27%). High college attainment predicts Democratic voting, and Biddeford sits in the top quarter (about 33%, above 79% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Biddeford, ME sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Biddeford looks the way it does
Turnout in Biddeford sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Saco, ME D+11
- Old Orchard Beach, ME D+19
- Kennebunkport, ME D+6
- Bar Mills, ME R+4
- Goodwins Mills, ME R+32
- Kennebunk, ME D+19
- West Kennebunk, ME R+3
- Scarborough, ME D+21
- Salmon Falls, ME R+30
- Buxton, ME R+15
Cities with Similar Populations
- Millbrae, CA D+40
- Loves Park, IL R+3
- Miami Springs, FL R+20
- Green Valley, AZ D+3
- Eastmont, WA D+7
- Clackamas, OR D+18
- Highland, IN Even
- Onalaska, WI D+6
- Inverness, FL R+42
- Canby, OR Even
All Local Stats
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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.