Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the city’s overall result across 2004–2024, on current city boundaries.
President results by year
Vote totals, margins, and source status
HarrisDemocratic59.2%1,438TrumpRepublican36.7%891OtherAll other candidates4.2%101
D+22.5
Lead
547
Total
2,430
vs nation
D+24.0
BidenDemocratic62.5%1,610TrumpRepublican35.2%908OtherAll other candidates2.3%58
D+27.3
Lead
702
Total
2,576
vs nation
D+22.8
ClintonDemocratic52.6%1,168TrumpRepublican38.0%843OtherAll other candidates9.4%209
D+14.6
Lead
325
Total
2,220
vs nation
D+12.5
ObamaDemocratic43.8%941RomneyRepublican54.8%1,179OtherAll other candidates1.4%30
R+11.1
Lead
238
Total
2,150
vs nation
R+14.9
ObamaDemocratic52.1%1,077McCainRepublican46.6%965OtherAll other candidates1.3%27
D+5.4
Lead
112
Total
2,069
vs nation
R+1.9
KerryDemocratic52.6%1,027BushRepublican46.2%902OtherAll other candidates1.2%23
D+6.4
Lead
125
Total
1,952
vs nation
D+8.9
Key facts
2024 presidential margin
D+22.5MIT Election Lab
Population
3,2522024 5-year
Population density
1,121 / sq mi2024 5-year · TIGER/Line
Land area
2.9 sq miTIGER/Line
Median household income
$212,7342024 5-year
White (non-Hispanic)
91.2%2024 5-year
Black
0.1%2024 5-year
Hispanic / Latino
2.8%2024 5-year
Peak Democratic margin
D+27.3 in 2020MIT Election Lab
Peak Republican margin
R+11.1 in 2012MIT Election Lab
Participation
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
2008–20246 cycles · 4 audited
2024 turnout
97.9%2,430 participants ÷ 2,483 CVAP
2016→2018 drop-off
+15.2 ptsVolatile
Drop-off vs state
+1.5 ptsPositive means a larger decline than the statewide pattern
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%80%100%
73.5%
74.7%
200820122016201820222024
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
2,430
2,483 ± 277
97.9%
Audited
E/D
2022Mid
1,847
2,473 ± 281
74.7%
Audited
E/D
2018Mid
1,863
2,533 ± 193
73.5%
Audited
E/A
2,255
2,542 ± 234
88.7%
Audited
E/A
2,150
2,441
88.1%
Derived
—
2,069
2,129
97.2%
Derived
—
Sources and methods
Audited cycles (2016, 2018, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
2024: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 323/229.
2022: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 322/184.
2018: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 320/139.
2016: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 319/133.
2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
presidential history
Party record book
South Duxbury, MA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
2004–2024 · 6 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
62.5%
1,610 votes · D+27.3
Runner-up · Kamala Harris, 2024 · 59.2%
Republican
Mitt Romney2012
54.8%
1,179 votes · R+11.1
Runner-up · John McCain, 2008 · 46.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
1,610votes
62.5% of the vote · D+27.3
Runner-up · Kamala Harris, 2024 · 1,438 votes
Republican
Mitt Romney2012
1,179votes
54.8% of the vote · R+11.1
Runner-up · John McCain, 2008 · 965 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
+24.0pts D vs U.S.
Place D+22.5 · U.S. R+1.5
Runner-up · Joe Biden, 2020 · +22.8 pts
Republican
Mitt Romney2012
+14.9pts R vs U.S.
Place R+11.1 · U.S. D+3.9
Runner-up · John McCain, 2008 · +1.9 pts
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 shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
South Duxbury · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain. The figures below are Plymouth County, Massachusetts, the county containing South Duxbury — South Duxbury’s own primary vote sits inside those totals and is not separately reported.
Presidential nominating contests in South Duxbury, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
South Duxbury sits within Plymouth County's shoreline communities, where high homeownership rates and an older, college-educated demographic tend to produce above-average electoral participation relative to population.
Across the recorded series it reached a Democratic high of 27.3 points in 2020 and a Republican high of 11.1 points in 2012. Between 2020 and 2024 the city moved 4.7 points toward the Republican candidate; the 2024 margin was 22.5 points.
A population of 3,252, a 91% non-Hispanic-white share, and a median household income of $212,734 describe the city.
How did South Duxbury, Massachusetts vote in 2024?
In 2024, South Duxbury, Massachusetts voted Democratic by 22.5 points (D+22.5), carried by the Democratic candidate. Out of 2,430 votes cast, 1,438 went Democratic and 891 went Republican.
When did South Duxbury, Massachusetts last vote Republican?
The most recent presidential election in which South Duxbury, Massachusetts voted Republican was 2012.
How many people live in South Duxbury, Massachusetts?
South Duxbury, Massachusetts has a population of 3,252 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Duxbury, Massachusetts?
Median household income in South Duxbury, Massachusetts is $212,734 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of South Duxbury, Massachusetts?
Akashic tracks 6 presidential elections in South Duxbury, Massachusetts from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.
