Day Square leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 40% of adults in Day Square typically vote, below the U.S. average of about 62%. Among adults in Day Square, ~29% vote Democratic, ~11% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.
How Day Square compares
Among neighborhoods within 5 miles, Day Square leans more Democratic than 4 of 33 neighbors.
Day Square runs about 19 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Day Square. The southwest side is the most Democratic-leaning (D+48) and the east side is the least Democratic-leaning (D+35), a spread of about 13 points.
Why Day Square 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 Day Square, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 52% of adults in Day Square have never been married, modestly above similar-sized neighborhoods (around 44%).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Day Square, Boston, MA sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Day Square looks the way it does
Renters vote less often than owners. About 73% of households in Day Square rent, about 48 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 10% of homes in Day Square have more than one occupant per room, above 92% of neighborhoods. High-crime urban areas turn out at lower rates, and Day Square sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- East Boston, Boston, MA D+38
- Gove Street, Boston, MA D+50
- Waterfront, Boston, MA D+45
- Dock Square, Boston, MA D+53
- Prattville, Chelsea, MA D+26
- Downtown Crossing, Boston, MA D+61
- Central, Boston, MA D+53
- East Cambridge, Cambridge, MA D+65
- East Somerville, Somerville, MA D+59
- South Boston, Boston, MA D+48
Neighborhoods with Similar Populations
- Oak Hill, Jacksonville, FL D+31
- Santo Nino, Laredo, TX D+7
- Bethel Welborn, Kansas City, KS D+41
- Duboce Triangle, San Francisco, CA D+83
- Downtown Walnut Creek, Walnut Creek, CA D+52
- Central Business District, Kansas City, MO D+51
- Zilker, Austin, TX D+45
- Sunbeam, Jacksonville, FL R+11
- Midway-Coldstream, Baltimore, MD D+85
- Mustang-Padre Island, Corpus Christi, TX R+38
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.