Cambridgeport is a Democratic stronghold. About 89% of voters here vote Democratic and 11% Republican.
About 54% of adults in Cambridgeport typically vote, below the U.S. average of about 62%. Among adults in Cambridgeport, ~48% vote Democratic, ~6% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Cambridgeport compares
Among neighborhoods within 5 miles, Cambridgeport leans more Democratic than 46 of 52 neighbors.
Cambridgeport runs about 52 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Cambridgeport. The north side is the most Democratic-leaning (D+82) and the northeast side is the least Democratic-leaning (D+72), a spread of about 10 points.
Why Cambridgeport 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 Cambridgeport, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 84% of adults in Cambridgeport hold a bachelor's degree, about 55 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 57% of adults in Cambridgeport have never been married, above 90% of neighborhoods.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Cambridgeport, Cambridge, MA sits in the top tenth nationally on this measure.
Why turnout in Cambridgeport looks the way it does
Renters vote less often than owners. About 67% of households in Cambridgeport rent, about 42 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Cambridgeport sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Riverside, Cambridge, MA D+78
- Area IV, Cambridge, MA D+74
- MIT, Cambridge, MA D+70
- Mid-Cambridge, Cambridge, MA D+77
- Wellington-Harrington, Cambridge, MA D+72
- North Brookline, Brookline, MA D+69
- Aggasiz-Harvard, Cambridge, MA D+78
- Fenway-Kenmore, Boston, MA D+67
- Union Square, Somerville, MA D+75
- Coolidge Corner, Brookline, MA D+70
Neighborhoods with Similar Populations
- Poplar Grove, Salt Lake City, UT D+34
- Garfield Manor, Chicago, IL D+38
- Southwest Topeka, Topeka, KS D+8
- Pleasant Grove West, Chesapeake, VA R+31
- Magruder, Hampton, VA D+47
- Marina-San Francisco, San Francisco, CA D+63
- Neighbors Southwest, Beaverton, OR D+42
- Eastwood, Syracuse, NY D+37
- Churchill, Eugene, OR D+46
- Moran Prairie, Spokane, WA 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.