- Lead
- 11,573
- Total
- 23,398
- vs nation
- D+50.9
Massachusetts 109th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 13,792
- Total
- 25,182
- vs nation
- D+50.3
- Lead
- 10,888
- Total
- 23,427
- vs nation
- D+44.4
- Lead
- 8,274
- Total
- 21,115
- vs nation
- D+35.3
- Lead
- 8,610
- Total
- 20,791
- vs nation
- D+34.1
- Lead
- 8,611
- Total
- 19,913
- vs nation
- D+45.7
- Lead
- 8,591
- Total
- 19,502
- vs nation
- D+43.5
- Lead
- 8,783
- Total
- 18,691
- vs nation
- D+38.5
Key facts
- 2024 presidential margin
- D+49.5MIT Election Lab
- Population
- 44,8852024 5-year
- Population density
- 1,352 / sq mi2024 5-year · TIGER/Line
- Land area
- 33.2 sq miTIGER/Line
- Median household income
- $250,0012024 5-year
- White (non-Hispanic)
- 73.1%2024 5-year
- Black
- 2.3%2024 5-year
- Hispanic / Latino
- 5.3%2024 5-year
- Peak Democratic margin
- D+63.1 in 1964MIT Election Lab
- Peak Republican margin
- R+41.7 in 1896MIT Election Lab
- Most similar
- 8th Middlesex District, MA · twin score 98.1
presidential history
Party record book
Massachusetts 109th 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
81.4%
13,530 votes · D+63.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 76.0%
Republican
William McKinley1896
65.7%
940 votes · R+41.7 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 64.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
19,141votes
76.0% of the vote · D+54.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 17,041 votes
Republican
Dwight D. Eisenhower1956
7,179votes
54.6% of the vote · R+9.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 7,148 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
+51.7pts D vs U.S.
Place D+28.6 · U.S. R+23.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · +50.9 pts
Republican
William McKinley1896
+35.7pts R vs U.S.
Place R+41.7 · U.S. R+6.1 · modeled estimate
Runner-up · Alf Landon, 1936 · +16.3 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 | 87.0%16,718 | 13.0%2,500 | 19,218 |
| 2020 | D | 82.6%17,185 | 17.4%3,612 | 20,797 |
With a 2024 presidential margin of D+49.5, the 14th Norfolk District sits among the Commonwealth's most lopsided legislative seats, reflecting a dense, highly educated suburban electorate that has trended sharply toward Democrats over the past decade.
Across the recorded series it reached a Democratic high of 63.1 points in 1964 and a Republican high of 41.7 points in 1896. Between 2020 and 2024 the district moved 5.3 points toward the Republican candidate; the 2024 margin was 49.5 points.
A population of 44,885, a 73% non-Hispanic-white share, and a median household income of $250,001 describe the district. The district's voting pattern over the last decade is most similar to that of 8th Middlesex District and 13th 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 109th State House District. Akashic. https://akashic.app/sld-lower/25109/. Accessed May 20, 2026. License: CC BY 4.0.