Berkley leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 89% of adults in Berkley typically vote, above the U.S. average of about 62%. Among adults in Berkley, ~36% vote Democratic, ~52% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Berkley compares
Among cities within 25 miles, Berkley leans more Republican than 128 of 130 neighbors.
Berkley runs about 44 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while Berkley is one of the few Republican-leaning pockets.
Why Berkley 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 Berkley, not a ranked or complete list of what matters most.
Berkley votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while Berkley runs about 44 points more Republican. Dense places usually vote Democratic, but Berkley runs against that pattern. A high family-household share predicts Republican voting, and about 83% of households in Berkley are family households, above 94% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Berkley, 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 Berkley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Berkley 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in Berkley own their home, about 22 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Assonet, MA R+14
- Dighton, MA R+13
- Assonet Bay Shores, MA R+17
- East Taunton, MA R+11
- North Dighton, MA R+15
- Taunton, MA D+2
- Lakeville, MA R+9
- Heaven Heights, MA R+16
- Raynham, MA R+3
- Somerset, MA R+3
Cities with Similar Populations
- Valley Springs, CA R+43
- Normandy Park, WA D+30
- Nephi, UT R+66
- Belcamp, MD D+21
- Houston, MS R+19
- Interlochen, MI R+15
- Fort Benning, GA R+32
- Delmar, DE R+34
- Windber, PA R+39
- Acampo, CA R+46
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.