Winter Hill is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 57% of adults in Winter Hill typically vote, near the U.S. average of about 62%. Among adults in Winter Hill, ~47% vote Democratic, ~10% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Winter Hill compares
Among neighborhoods within 5 miles, Winter Hill leans more Democratic than 25 of 50 neighbors.
Winter Hill runs about 40 points more Democratic than Massachusetts as a whole.
Why Winter Hill leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Winter Hill, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Winter Hill live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Winter Hill sits in the top quarter (about 60%, above 80% of neighborhoods). A high never-married share predicts Democratic voting, and about 52% of adults in Winter Hill have never been married, above 85% of neighborhoods.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Winter Hill, Somerville, MA sits in the top tenth nationally on this measure.
Why turnout in Winter Hill looks the way it does
Turnout in Winter Hill 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 Neighborhoods
- Ten Hills, Somerville, MA D+52
- East Somerville, Somerville, MA D+59
- Spring Hill, Somerville, MA D+75
- Union Square, Somerville, MA D+75
- Ball Square, Somerville, MA D+70
- Aggasiz-Harvard, Cambridge, MA D+78
- Wellington-Harrington, Cambridge, MA D+72
- Avon Hill, Cambridge, MA D+79
- Tufts, Somerville, MA D+71
- Mid-Cambridge, Cambridge, MA D+77
Neighborhoods with Similar Populations
- Windsor Park, Chicago, IL D+81
- Columbus Park, Worcester, MA D+29
- Maplewood, Fall River, MA R+6
- Montopolis, Austin, TX D+54
- South Side, Mount Vernon, NY D+75
- Glencliff, Nashville, TN D+21
- Pioneer Park, Las Vegas, NV D+16
- Bridle Trails, Bellevue, WA D+46
- Southern Highlands, Enterprise, NV R+5
- Carrick, Pittsburgh, PA D+18
Sources and methodology
Precinct-level voting records used to fit the model come from Massachusetts Secretary of the Commonwealth, Elections, 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. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.