- Lead
- 11,454
- Total
- 24,453
- vs nation
- D+48.3
Massachusetts 73rd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 13,386
- Total
- 26,109
- vs nation
- D+46.8
- Lead
- 10,382
- Total
- 23,889
- vs nation
- D+41.4
- Lead
- 7,429
- Total
- 22,244
- vs nation
- D+29.5
- Lead
- 7,924
- Total
- 21,694
- vs nation
- D+29.3
- Lead
- 7,391
- Total
- 20,580
- vs nation
- D+38.4
- Lead
- 7,302
- Total
- 19,386
- vs nation
- D+37.1
- Lead
- 7,894
- Total
- 18,523
- vs nation
- D+34.1
Key facts
- 2024 presidential margin
- D+46.8MIT Election Lab
- Population
- 44,3932024 5-year
- Population density
- 2,277 / sq mi2024 5-year · TIGER/Line
- Land area
- 19.5 sq miTIGER/Line
- Median household income
- $196,6792024 5-year
- White (non-Hispanic)
- 62.6%2024 5-year
- Black
- 2.1%2024 5-year
- Hispanic / Latino
- 3.6%2024 5-year
- Peak Democratic margin
- D+57.8 in 1964MIT Election Lab
- Peak Republican margin
- R+46.9 in 1896MIT Election Lab
- Most similar
- 12th Middlesex District, MA · twin score 96.8
presidential history
Party record book
Massachusetts 73rd 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
78.8%
13,853 votes · D+57.8 · modeled estimate
Runner-up · Joe Biden, 2020 · 74.7%
Republican
William McKinley1896
70.5%
1,554 votes · R+46.9 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 67.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
19,494votes
74.7% of the vote · D+51.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 17,525 votes
Republican
Dwight D. Eisenhower1956
9,398votes
57.8% of the vote · R+15.9 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 8,741 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
Kamala Harris2024
+48.3pts D vs U.S.
Place D+46.8 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +46.8 pts
Republican
William McKinley1896
+40.8pts R vs U.S.
Place R+46.9 · U.S. R+6.1 · modeled estimate
Runner-up · Alf Landon, 1936 · +20.2 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%16,822 | 0.0%0 | 16,822 |
| 2020 | D | 80.6%16,976 | 19.4%4,081 | 21,057 |
With a 2024 presidential margin of D+46.8, the 15th Middlesex District ranks among the most lopsided state legislative districts in the commonwealth, reflecting a dense, highly educated urban electorate.
Across the recorded series it reached a Democratic high of 57.8 points in 1964 and a Republican high of 46.9 points in 1896. Between 2020 and 2024 the district moved 4.4 points toward the Republican candidate; the 2024 margin was 46.8 points.
A population of 44,393, a 63% non-Hispanic-white share, and a median household income of $196,679 describe the district. The district's voting pattern over the last decade is most similar to that of 12th Middlesex District and 21st 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 73rd State House District. Akashic. https://akashic.app/sld-lower/25073/. Accessed May 20, 2026. License: CC BY 4.0.