Massachusetts Third Suffolk 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
76.8%
47,327 votes · D+53.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 72.3%
Republican
William McKinley1896
73.2%
18,982 votes · R+53.1 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 72.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
52,793votes
72.3% of the vote · D+46.6 · modeled estimate
Runner-up · Harry S. Truman, 1948 · 48,856 votes
Republican
Dwight D. Eisenhower1956
57,478votes
61.8% of the vote · R+24.0 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 57,262 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
+42.1pts D vs U.S.
Place D+46.6 · U.S. D+4.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +38.2 pts
Republican
William McKinley1896
+47.0pts R vs U.S.
Place R+53.1 · U.S. R+6.1 · modeled estimate
Runner-up · William H. Taft, 1908 · +22.5 pts
current representation
Current officeholders
DLydia EdwardsState Senate · Third Suffolk
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
92.7%54,541
7.3%4,271
58,812
2020
D
96.7%60,825
3.3%2,063
62,888
Anchored in dense urban Boston neighborhoods, the Third Suffolk consistently delivers among the largest Democratic presidential margins in the Massachusetts Senate, reflecting a heavily renter-majority, majority-minority electorate with low car-ownership rates.
Across the recorded series it reached a Democratic high of 53.9 points in 1964 and a Republican high of 53.1 points in 1896. Between 2020 and 2024 the district moved 12.6 points toward the Republican candidate; the 2024 margin was 34.0 points.
A population of 181,925, a 55% non-Hispanic-white share, and a median household income of $102,489 describe the district. The district's voting pattern over the last decade is most similar to that of Middlesex and Suffolk District and Third Essex District.
Akashic
Political twins — state-senate districts
The state-senate 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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Massachusetts Third Suffolk District. Akashic. https://akashic.app/sld-upper/25D25/. Accessed May 20, 2026. License: CC BY 4.0.
How did Massachusetts Third Suffolk District vote in 2024?
In 2024, Massachusetts Third Suffolk District voted Democratic by 34.0 points (D+34.0), carried by the Democratic candidate. Out of 66,842 votes cast, 43,656 went Democratic and 20,922 went Republican.
When did Massachusetts Third Suffolk District last vote Republican?
The most recent presidential election in which Massachusetts Third Suffolk District voted Republican was 1988.
How many people live in Massachusetts Third Suffolk District?
Massachusetts Third Suffolk District has a population of 181,925 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Massachusetts Third Suffolk District?
Median household income in Massachusetts Third Suffolk District is $102,489 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of Massachusetts Third Suffolk District?
Akashic tracks 38 presidential elections in Massachusetts Third Suffolk District from 1876 to 2024. Of those, 17 went Democratic and 21 went Republican.