- Lead
- 15,702
- Total
- 20,025
- vs nation
- D+79.9
Massachusetts 137th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 19,374
- Total
- 22,644
- vs nation
- D+81.1
- Lead
- 17,827
- Total
- 21,810
- vs nation
- D+81.3
- Lead
- 15,944
- Total
- 18,774
- vs nation
- D+81.1
- Lead
- 15,020
- Total
- 17,815
- vs nation
- D+77.0
- Lead
- 13,157
- Total
- 15,708
- vs nation
- D+86.2
- Lead
- 10,946
- Total
- 14,339
- vs nation
- D+77.4
- Lead
- 10,460
- Total
- 13,252
- vs nation
- D+71.0
Key facts
- 2024 presidential margin
- D+78.4MIT Election Lab
- Population
- 45,0122024 5-year
- Population density
- 15,521 / sq mi2024 5-year · TIGER/Line
- Land area
- 2.9 sq miTIGER/Line
- Median household income
- $107,2312024 5-year
- White (non-Hispanic)
- 47.2%2024 5-year
- Black
- 13.5%2024 5-year
- Hispanic / Latino
- 23.0%2024 5-year
- Peak Democratic margin
- D+91.2 in 1964MIT Election Lab
- Most similar
- 9th Suffolk District, MA · twin score 97.7
presidential history
Party record book
Massachusetts 137th 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
95.4%
20,157 votes · D+91.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 91.8%
Republican
William McKinley1896
29.3%
1,139 votes · D+28.1 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 27.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Harry S. Truman1948
20,839votes
86.6% of the vote · D+77.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 20,781 votes
Republican
Dwight D. Eisenhower1956
3,523votes
18.9% of the vote · D+61.5 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 3,491 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
+98.0pts D vs U.S.
Place D+74.9 · U.S. R+23.2 · modeled estimate
Runner-up · Al Smith, 1928 · +93.0 pts
Republican
William H. Taft1912
−32.1pts R vs U.S.
Place D+51.7 · U.S. D+19.5 · modeled estimate
Runner-up · William McKinley, 1896 · −34.2 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 | 92.7%13,495 | 7.3%1,057 | 14,552 |
| 2020 | D | 96.7%15,049 | 3.3%511 | 15,560 |
With a 2024 presidential margin of D+78.4, the 15th Suffolk District ranks among the most one-sided legislative districts in the state, reflecting the dense, heavily urban electorate concentrated in Boston's core neighborhoods.
Across the recorded series it reached a Democratic high of 91.2 points in 1964. Between 2020 and 2024 the district moved 7.1 points toward the Republican candidate; the 2024 margin was 78.4 points.
A population of 45,012, a 47% non-Hispanic-white share, and a median household income of $107,231 describe the district. The district's voting pattern over the last decade is most similar to that of 9th Suffolk District and 26th 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 137th State House District. Akashic. https://akashic.app/sld-lower/25137/. Accessed May 20, 2026. License: CC BY 4.0.