- Lead
- 3,359
- Total
- 27,492
- vs nation
- D+13.7
Massachusetts 104th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,458
- Total
- 28,001
- vs nation
- D+15.0
- Lead
- 1,810
- Total
- 25,183
- vs nation
- D+5.1
- Lead
- 1,427
- Total
- 23,606
- vs nation
- R+9.9
- Lead
- 784
- Total
- 23,182
- vs nation
- R+10.7
- Lead
- 64
- Total
- 22,043
- vs nation
- D+2.2
- Lead
- 1,090
- Total
- 21,271
- vs nation
- D+4.6
- Lead
- 1,851
- Total
- 20,170
- vs nation
- D+0.7
Key facts
- 2024 presidential margin
- D+12.2MIT Election Lab
- Population
- 46,0752024 5-year
- Population density
- 740 / sq mi2024 5-year · TIGER/Line
- Land area
- 62.3 sq miTIGER/Line
- Median household income
- $158,2482024 5-year
- White (non-Hispanic)
- 86.4%2024 5-year
- Black
- 2.8%2024 5-year
- Hispanic / Latino
- 4.1%2024 5-year
- Peak Democratic margin
- D+26.5 in 1964MIT Election Lab
- Peak Republican margin
- R+65.8 in 1920MIT Election Lab
- Most similar
- 10th Norfolk District, MA · twin score 98.4
presidential history
Party record book
Massachusetts 104th 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
62.9%
10,089 votes · D+26.5 · modeled estimate
Runner-up · Joe Biden, 2020 · 58.4%
Republican
Warren G. Harding1920
81.0%
4,413 votes · R+65.8 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 76.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
16,355votes
58.4% of the vote · D+19.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · 15,003 votes
Republican
Ronald Reagan1984
13,646votes
64.3% of the vote · R+29.0 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 12,994 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
+15.0pts D vs U.S.
Place D+19.5 · U.S. D+4.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · +13.7 pts
Republican
Alf Landon1936
+59.7pts R vs U.S.
Place R+35.5 · U.S. D+24.3 · modeled estimate
Runner-up · William McKinley, 1896 · +58.9 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 | 81.3%17,006 | 18.7%3,899 | 20,905 |
| 2020 | D | 83.7%17,651 | 16.3%3,433 | 21,084 |
Anchored in Norfolk County's inner suburbs, this mid-sized state house district has delivered consistent Democratic margins, reflecting the broader leftward shift among college-educated suburban voters in the Greater Boston metropolitan ring.
Across the recorded series it reached a Democratic high of 26.5 points in 1964 and a Republican high of 65.8 points in 1920. Between 2020 and 2024 the district moved 7.3 points toward the Republican candidate; the 2024 margin was 12.2 points.
A population of 46,075, a 86% non-Hispanic-white share, and a median household income of $158,248 describe the district. The district's voting pattern over the last decade is most similar to that of 10th Norfolk 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 104th State House District. Akashic. https://akashic.app/sld-lower/25104/. Accessed May 20, 2026. License: CC BY 4.0.