Coolidge Corner is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 65% of adults in Coolidge Corner typically vote, near the U.S. average of about 62%. Among adults in Coolidge Corner, ~55% vote Democratic, ~10% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Coolidge Corner compares
Among neighborhoods within 5 miles, Coolidge Corner leans more Democratic than 35 of 53 neighbors.
Coolidge Corner runs about 45 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Coolidge Corner. The northwest side is the most Democratic-leaning (D+79) and the northeast side is the least Democratic-leaning (D+62), a spread of about 17 points.
Why Coolidge Corner 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 Coolidge Corner, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 87% of adults in Coolidge Corner hold a bachelor's degree, about 59 points above the U.S. average of 28%. Dense areas vote Democratic, and Coolidge Corner sits in the top fifth on density (more than 99%, above 89% of neighborhoods).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Coolidge Corner, Brookline, MA sits in the top tenth 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 Coolidge Corner looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Coolidge Corner 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 78%, about 18 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- North Brookline, Brookline, MA D+69
- Brookline Village Commercial District, Brookline, MA D+76
- Brookline Village, Brookline, MA D+74
- Washington Square, Brookline, MA D+72
- Allston-Brighton, Brighton, MA D+63
- Fenway-Kenmore, Boston, MA D+67
- Cambridgeport, Cambridge, MA D+77
- MIT, Cambridge, MA D+70
- Riverside, Cambridge, MA D+78
- Area IV, Cambridge, MA D+74
Neighborhoods with Similar Populations
- Coronado, El Paso, TX D+18
- Pukalani, Makawao, HI D+20
- Kempsville Gardens, Virginia Beach, VA D+20
- Berwick, Columbus, OH D+62
- Elgin Historic District, Elgin, IL D+38
- Beechview, Pittsburgh, PA D+34
- West Modesto, Modesto, CA D+8
- Old San Leandro, San Leandro, CA D+50
- Downtown Tempe, Tempe, AZ D+38
- Cane Ridge, Antioch, TN D+5
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.