- Lead
- 345
- Total
- 25,630
- vs nation
- D+2.8
Massachusetts 77th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,104
- Total
- 26,456
- vs nation
- D+3.5
- Lead
- 551
- Total
- 24,402
- vs nation
- R+4.3
- Lead
- 4,073
- Total
- 23,851
- vs nation
- R+20.9
- Lead
- 3,072
- Total
- 22,803
- vs nation
- R+20.7
- Lead
- 3,148
- Total
- 21,739
- vs nation
- R+12.0
- Lead
- 1,874
- Total
- 20,367
- vs nation
- R+9.7
- Lead
- 498
- Total
- 18,980
- vs nation
- R+11.1
Key facts
- 2024 presidential margin
- D+1.3MIT Election Lab
- Population
- 42,3102024 5-year
- Population density
- 1,573 / sq mi2024 5-year · TIGER/Line
- Land area
- 26.9 sq miTIGER/Line
- Median household income
- $148,4782024 5-year
- White (non-Hispanic)
- 87.2%2024 5-year
- Black
- 1.5%2024 5-year
- Hispanic / Latino
- 3.1%2024 5-year
- Peak Democratic margin
- D+13.4 in 1964MIT Election Lab
- Peak Republican margin
- R+75.4 in 1896MIT Election Lab
- Most similar
- 22nd Middlesex District, MA · twin score 97.2
presidential history
Party record book
Massachusetts 77th 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
56.4%
9,098 votes · D+13.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 52.9%
Republican
Warren G. Harding1920
84.4%
8,066 votes · R+71.1 · modeled estimate
Runner-up · William McKinley, 1896 · 84.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
13,984votes
52.9% of the vote · D+8.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 12,676 votes
Republican
Dwight D. Eisenhower1956
17,677votes
79.5% of the vote · R+59.3 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 16,460 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
Joe Biden2020
+3.5pts D vs U.S.
Place D+8.0 · U.S. D+4.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · +2.8 pts
Republican
William McKinley1896
+69.4pts R vs U.S.
Place R+75.4 · U.S. R+6.1 · modeled estimate
Runner-up · Alf Landon, 1936 · +65.8 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 | 100.0%16,033 | 0.0%0 | 16,033 |
| 2020 | D | 80.6%16,180 | 19.4%3,890 | 20,070 |
The 19th Middlesex posted a D+1.3 margin in 2024, one of the closest presidential results in the state, signaling a competitive electorate that defies the surrounding region's typical double-digit Democratic lean.
Across the recorded series it reached a Democratic high of 13.4 points in 1964 and a Republican high of 75.4 points in 1896. Between 2020 and 2024 the district moved 6.6 points toward the Republican candidate; the 2024 margin was 1.3 points.
A population of 42,310, a 87% non-Hispanic-white share, and a median household income of $148,478 describe the district. The district's voting pattern over the last decade is most similar to that of 22nd Middlesex District and 1st Middlesex 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 77th State House District. Akashic. https://akashic.app/sld-lower/25077/. Accessed May 20, 2026. License: CC BY 4.0.