Hampshire County leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 76% of adults in Hampshire County typically vote, above the U.S. average of about 62%. Among adults in Hampshire County, ~55% vote Democratic, ~21% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How Hampshire County compares
Among counties within 50 miles, Hampshire County is the most Democratic-leaning.
Hampshire County runs about 20 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by city within Hampshire County. The northeast side is the most Democratic-leaning (D+72) and the southeast side is the least Democratic-leaning (D+4), a spread of about 67 points.
Why Hampshire County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Hampshire County, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 52% of adults in Hampshire County hold a bachelor's degree, about 24 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 43% of adults in Hampshire County have never been married, above 96% of counties.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Hampshire County, MA sits in the top tenth nationally on this measure.
Why turnout in Hampshire County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hampshire County 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Hampshire County have completed high school, above 97% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Hampden County, MA D+14
- Franklin County, MA D+22
- Berkshire County, MA D+27
- Worcester County, MA D+12
- Cheshire County, NH Even
- Windham County, VT D+28
- Bennington County, VT D+17
- Columbia County, NY D+12
- Rensselaer County, NY D+6
- Providence County, RI D+20
Counties with Similar Populations
- Portage County, OH R+12
- Olmsted County, MN D+12
- Johnson County, IN R+35
- Dorchester County, SC R+12
- Comal County, TX R+36
- Rensselaer County, NY D+6
- Houston County, GA R+4
- Rock County, WI Even
- Catawba County, NC R+33
- St. Clair County, MI R+31
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.