Demographics — Most Democratic Large State
Massachusetts Demographics 2026
7 million people: Nobel laureates and longshoremen, Cambridge tech workers and Springfield immigrants, all united by the deepest Democratic structural advantage of any large state in America.
71%
White Non-Hispanic
9%
Black / African American
12%
Hispanic / Latino
7%
Asian American
Race & Ethnicity Breakdown
| Group | Massachusetts | National Avg | Partisan Lean |
|---|---|---|---|
| White Non-Hispanic | 71% | 59% | D+20 (college-educated suburban) |
| Hispanic / Latino | 12% | 19% | D+45 (Dominican, Puerto Rican, Brazilian) |
| Black / African American | 9% | 13% | D+75 (Boston, Springfield, Worcester) |
| Asian American / Pacific Islander | 7% | 6% | D+50 (Cambridge tech; Lowell SE Asian) |
| College-educated adults | 45% | 33% | D+35 (highest in nation) |
| Biotech/healthcare/tech workers | ~22% | ~14% | D+25 to D+40 |
| Irish/Italian Catholic white working class | ~15% | ~11% | D+15 (historical machine) |
| Median household income | $89,000 | $74,000 | Well above average; social liberalism |
Regional Breakdown
Greater Boston (Suffolk, Middlesex, Norfolk) — D+40 to D+55
The political core. Suffolk County (Boston, Chelsea) votes D+60. Cambridge (Harvard/MIT) votes D+65. The Route 128 suburban tech corridor (Waltham, Newton, Needham) votes D+30. Norfolk County (Quincy, Brookline) D+25. Together Greater Boston produces over 70% of the state's Democratic presidential margin.
Springfield / Pioneer Valley — D+20
Western Massachusetts is more economically diverse than the Boston metro. Springfield has a large Puerto Rican community (the second-largest in Massachusetts) and votes D+30. The Five Colleges area (Amherst, Northampton) is one of the most liberal small-city clusters in America. Rural Western MA has pockets of R-leaning white working-class voters, but they are outnumbered.
Lowell / Lawrence / Brockton — D+30 to D+40
The immigrant mill cities of northeastern Massachusetts. Lowell has the nation's second-largest Cambodian-American population and a large Dominican community; it votes D+35. Lawrence is majority-Dominican and votes D+45. Brockton has a large Cape Verdean and Haitian community; it votes D+35. These cities represent the historical pattern of Massachusetts immigrant communities providing Democratic margins.
Cape Cod / South Shore — R+5 to D+10 (competitive)
The Cape and Islands are home to wealthy retirees and seasonal residents, producing the most Republican-leaning communities in the state. Barnstable County historically voted Republican but has been trending Democratic as its permanent population ages out and younger coastal professionals move in. The South Shore (Plymouth County) has a mix of working-class towns that produced some Trump overperformance.
2026 Senate: Safe Democratic
Elizabeth Warren Up in 2024 — Won Easily
Elizabeth Warren won re-election in 2024 by approximately 15 points. Ed Markey won his seat in 2020 after defeating Joe Kennedy III in the Democratic primary. Massachusetts has not sent a Republican to the Senate since Scott Brown won a 2010 special election, then lost re-election to Warren in 2012.
The state's next Senate majority math cycle will be Markey in 2026. He is expected to face a competitive Democratic primary but win a general election easily in this D+25 state.