- Lead
- 10,844
- Total
- 14,960
- vs nation
- D+74.0
Massachusetts 128th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 15,101
- Total
- 17,863
- vs nation
- D+80.1
- Lead
- 15,229
- Total
- 17,361
- vs nation
- D+85.6
- Lead
- 13,409
- Total
- 15,260
- vs nation
- D+84.0
- Lead
- 12,643
- Total
- 14,440
- vs nation
- D+80.3
- Lead
- 11,081
- Total
- 12,734
- vs nation
- D+89.5
- Lead
- 9,371
- Total
- 11,266
- vs nation
- D+82.7
- Lead
- 8,829
- Total
- 10,571
- vs nation
- D+75.0
Key facts
- 2024 presidential margin
- D+72.5MIT Election Lab
- Population
- 44,7582024 5-year
- Population density
- 14,438 / sq mi2024 5-year · TIGER/Line
- Land area
- 3.1 sq miTIGER/Line
- Median household income
- $68,7642024 5-year
- White (non-Hispanic)
- 7.7%2024 5-year
- Black
- 54.3%2024 5-year
- Hispanic / Latino
- 27.3%2024 5-year
- Peak Democratic margin
- D+92.4 in 1964MIT Election Lab
- Most similar
- 5th Suffolk District, MA · twin score 98.8
presidential history
Party record book
Massachusetts 128th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
96.2%
16,744 votes · D+92.4 · modeled estimate
Runner-up · Barack Obama, 2012 · 93.5%
Republican
William McKinley1896
27.5%
789 votes · D+37.2 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 25.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Harry S. Truman1948
17,293votes
89.6% of the vote · D+81.4 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 16,744 votes
Republican
Dwight D. Eisenhower1956
2,443votes
16.4% of the vote · D+67.1 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 2,433 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
George McGovern1972
+101.5pts D vs U.S.
Place D+78.3 · U.S. R+23.2 · modeled estimate
Runner-up · Al Smith, 1928 · +96.6 pts
Republican
William H. Taft1912
−41.2pts R vs U.S.
Place D+60.8 · U.S. D+19.5 · modeled estimate
Runner-up · William McKinley, 1896 · −43.3 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 92.7%13,418 | 7.3%1,051 | 14,469 |
| 2020 | D | 96.7%14,964 | 3.3%508 | 15,472 |
The 6th Suffolk delivers Democratic presidential margins exceeding 70 points, placing it among the most reliably one-sided state house districts in the country. Dense urban precincts and a heavily minority population define its electoral profile.
Across the recorded series it reached a Democratic high of 92.4 points in 1964. Between 2020 and 2024 the district moved 12.1 points toward the Republican candidate; the 2024 margin was 72.5 points.
A population of 44,758, a 8% non-Hispanic-white share, and a median household income of $68,764 describe the district. The district's voting pattern over the last decade is most similar to that of 5th Suffolk District and Assembly District 56.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Massachusetts 128th State House District. Akashic. https://akashic.app/sld-lower/25128/. Accessed May 20, 2026. License: CC BY 4.0.