- Lead
- 4,666
- Total
- 12,028
- vs nation
- D+40.3
Massachusetts 64th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,017
- Total
- 13,720
- vs nation
- D+46.7
- Lead
- 6,614
- Total
- 13,227
- vs nation
- D+47.9
- Lead
- 5,086
- Total
- 11,927
- vs nation
- D+38.8
- Lead
- 5,307
- Total
- 11,656
- vs nation
- D+38.3
- Lead
- 4,977
- Total
- 11,077
- vs nation
- D+47.4
- Lead
- 4,769
- Total
- 10,680
- vs nation
- D+44.1
- Lead
- 5,025
- Total
- 10,293
- vs nation
- D+40.3
Key facts
- 2024 presidential margin
- D+38.8MIT Election Lab
- Population
- 41,8192024 5-year
- Population density
- 4,699 / sq mi2024 5-year · TIGER/Line
- Land area
- 8.9 sq miTIGER/Line
- Median household income
- $87,5462024 5-year
- White (non-Hispanic)
- 40.7%2024 5-year
- Black
- 7.4%2024 5-year
- Hispanic / Latino
- 23.6%2024 5-year
- Peak Democratic margin
- D+64.7 in 1964MIT Election Lab
- Peak Republican margin
- R+39.3 in 1896MIT Election Lab
- Most similar
- State House District 54, PA · twin score 93.7
presidential history
Party record book
Massachusetts 64th 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
82.2%
7,945 votes · D+64.7 · modeled estimate
Runner-up · Joe Biden, 2020 · 74.5%
Republican
William McKinley1896
65.8%
696 votes · R+39.3 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 62.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
10,220votes
74.5% of the vote · D+51.1 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 9,393 votes
Republican
Dwight D. Eisenhower1956
4,339votes
52.5% of the vote · R+5.2 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 4,027 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
+52.6pts D vs U.S.
Place D+29.5 · U.S. R+23.2 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +47.9 pts
Republican
William McKinley1896
+33.2pts R vs U.S.
Place R+39.3 · U.S. R+6.1 · modeled estimate
Runner-up · Alf Landon, 1936 · +10.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
The 6th Middlesex posted a D+38.8 margin in 2024, placing it among Massachusetts' most heavily Democratic state house districts. Dense urban settlement and high educational attainment are the structural drivers behind its consistent partisan tilt.
Across the recorded series it reached a Democratic high of 64.7 points in 1964 and a Republican high of 39.3 points in 1896. Between 2020 and 2024 the district moved 12.4 points toward the Republican candidate; the 2024 margin was 38.8 points.
A population of 41,819, a 41% non-Hispanic-white share, and a median household income of $87,546 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 54 and 1st Suffolk District.
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 64th State House District. Akashic. https://akashic.app/sld-lower/25064/. Accessed May 20, 2026. License: CC BY 4.0.