Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupNantucket CountyMassachusettsUnited States
Irish19.2%18.6%9.4%
English15.1%9.7%9.5%
Italian9.0%11.1%4.8%
German6.3%5.4%12.5%
French4.5%4.7%1.6%
Polish2.7%3.4%2.2%
American2.7%3.3%5.3%
Portuguese2.5%2.3%—
Dominican5.2%2.7%0.7%
Salvadoran3.8%1.1%0.7%
Spanish1.7%——
Costa Rican1.4%——
Colombian1.3%0.6%0.4%
Mexican1.1%0.8%11.3%
Puerto Rican1.0%4.6%1.8%
Cuban0.9%0.2%0.7%
African American†8.4%2.6%9.9%
Jamaican0.7%0.5%0.4%
Barbadian0.2%——
Korean1.1%0.4%0.4%
Asian Indian0.3%1.9%1.4%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Nantucket County
Massachusetts
United States
Median age
42.4
40.3
39.1
Age 18–24
6.8%
9.9%
9.2%
Age 65 and older
16.1%
17.9%
17.2%
Household economy
Measure
Nantucket County
Massachusetts
United States
Median household income
$139,688
$103,960
$84,427
Poverty rate
3.2%
10.1%
12.5%
Bachelor's degree or higher (25+)
56.3%
47.3%
35.6%
Languages at home
Measure
Nantucket County
Massachusetts
United States
Speaks a non-English language at home
18.7%
25.1%
22.3%
Spanish
12.2%
9.7%
13.6%
Russian, Polish, or other Slavic
2.9%
1.0%
0.7%
Religious landscape
Measure
Nantucket County
Massachusetts
United States
Catholic
22.6%
35.5%
18.6%
Evangelical Protestant
1.5%
3.6%
16.5%
Unclaimed / not counted
67.4%
51.4%
51.5%
Mainline Protestant
6.2%
3.3%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Nantucket County, Massachusetts
Precinct data
Results by precinct
1 precincts · 7,118 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
Nantucket County precinct-level presidential election results for 2024
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
67.2%Harris4,784
30.5%Trump2,171
0.5%Stein39 +4
D+36.7
R+8.6
D+38.2
7,118
All 7 candidates in 2024 · 5 minor / independent
Kamala D HarrisDemocratic67.2%4,784
Donald J TrumpRepublican30.5%2,171
Jill SteinIndependent0.5%39
Ayyadurai EllisIndependent0.5%38
All OthersIndependent0.5%36
Chase OliverLibertarian0.5%33
Claudia De La CruzIndependent0.2%17
D
71.4%Biden5,241
26.1%Trump1,914
1.1%Jorgensen81
D+45.3
D+11.1
D+40.9
7,338
D
63.0%Clinton4,146
28.7%Trump1,892
3.9%Johnson260
D+34.2
D+7.4
D+32.1
6,583
D
62.6%Obama3,830
35.7%Romney2,187
1.7%
D+26.8
R+9.7
D+23.0
6,120
D
67.3%Obama4,073
30.8%McCain1,863
1.9%
D+36.5
D+9.1
D+29.2
6,052
D
63.0%Kerry3,608
35.6%Bush2,040
1.3%
D+27.4
D+2.0
D+29.9
5,724
D
58.3%Gore2,874
33.0%Bush1,624
7.7%Nader378
D+25.4
R+4.2
D+24.9
4,926
D
59.0%Clinton2,453
29.4%Dole1,222
9.6%Perot400
D+29.6
D+8.7
D+21.1
4,159
D
48.3%Clinton2,037
27.5%Bush1,158
23.5%Perot989
D+20.8
D+1.0
D+15.3
4,216
D
59.2%Dukakis2,209
39.4%Bush1,469
1.4%
D+19.8
D+27.4
D+27.6
3,731
R
45.9%Mondale1,456
53.5%Reagan1,697
0.5%
R+7.6
R+3.8
D+10.6
3,170
R
36.6%Carter1,040
40.5%Reagan1,149
22.9%
R+3.8
D+7.0
D+5.9
2,838
R
42.5%Carter1,115
53.3%Ford1,399
4.3%
R+10.8
D+8.8
R+12.9
2,626
R
40.0%McGovern952
59.6%Nixon1,418
0.4%
R+19.6
R+5.8
D+3.6
2,380
R
41.5%Humphrey744
55.3%Nixon991
3.2%
R+13.8
R+47.9
R+13.1
1,792
D
67.0%Johnson1,197
32.8%Goldwater587
0.2%
D+34.1
D+61.3
D+11.6
1,787
R
36.4%Kennedy698
63.5%Nixon1,219
0.1%
R+27.1
D+39.4
R+27.3
1,919
R
16.7%Stevenson317
83.3%Eisenhower1,582
0.1%
R+66.6
R+9.4
R+51.2
1,900
R
21.3%Stevenson405
78.5%Eisenhower1,490
0.1%
R+57.2
R+15.3
R+46.4
1,897
R
28.4%Truman409
70.2%Dewey1,013
1.4%
R+41.9
R+26.3
R+46.4
1,442
R
42.2%Roosevelt569
57.7%Dewey779
0.1%
R+15.6
D+8.2
R+23.1
1,349
R
37.9%Roosevelt624
61.6%Willkie1,015
0.5%
R+23.7
D+3.5
R+33.7
1,647
R
35.5%Roosevelt548
62.8%Landon969
1.7%
R+27.3
R+9.1
R+51.5
1,544
R
40.7%Roosevelt561
58.8%Hoover812
0.5%
R+18.2
D+19.1
R+36.0
1,380
R
31.3%Smith395
68.6%Hoover865
0.1%
R+37.3
D+23.6
R+19.8
1,261
R
18.8%Davis167
79.6%Coolidge708
1.3%La Follette12
R+60.9
R+11.5
R+35.7
889
R
25.1%Cox205
74.5%Harding608
0.4%
R+49.4
R+59.7
R+23.2
816
D
54.4%Wilson307
44.1%Hughes249
1.4%
D+10.3
R+11.7
D+7.1
564
D
43.8%Wilson247
21.8%Taft123
34.4%
D+22.0
D+66.0
D+2.4
564
R
26.8%Bryan136
70.8%Taft359
2.4%
R+44.0
R+7.0
R+34.4
507
R
30.2%Parker170
67.3%Roosevelt378
2.5%
R+37.0
D+18.8
R+17.3
562
R
20.9%Bryan102
76.7%McKinley375
2.5%
R+55.8
D+13.3
R+48.3
489
R
10.1%Bryan62
79.2%McKinley485
10.6%
R+69.1
R+36.4
R+63.0
612
R
32.7%Cleveland220
65.5%Harrison440
1.8%
R+32.7
—
R+34.4
672
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Congressional elections · 3 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
D
64.5%4,513
35.5%2,479
6,992
2020
D
70.2%5,132
27.8%2,034
7,310
2018
D
64.1%2,662
32.5%1,351
4,156
voter registration
Registered voters
By party of registration, over time
Party registration · 2025D+14.6
vs
Presidential vote · 2024D+36.7
Registration leans Democratic; the presidential vote runs 22 points more Republican.
Net migration over time, and who arrivals are — where they came from and what those places vote
−87 net domestic migration · 2025
20112025
Net −394 over 2011–2025 · gain loss
Arrivals reported $132,252 in average income, against $162,655 for residents who stayed — 19% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+20.6 on average — 16 points more Republican-leaning than Nantucket County, MA itself (D+36.7).
Where arrivals came from lean of each source
Barnstable County, MA33D+20.6
Where departures went households, 2022–23
Barnstable County, MA49
Suffolk County, MA34
Palm Beach County, FL21
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
Domestic migration in Nantucket County, MA in Nantucket County, MA: net domestic migration by year
Year
Net domestic migration
2011
−156
2012
+59
2013
+55
2014
+115
2015
−35
2016
−11
2017
−58
2018
−157
2019
+57
2021
+192
2022
−178
2023
−131
2024
−59
2025
−87
Despite its reputation as a playground for the affluent, Nantucket delivered a 36-point Democratic margin in 2024, reflecting a broader pattern of college-educated, high-income coastal communities drifting sharply left over the past decade.
Across the recorded series it reached a Democratic high of 45.3 points in 2020 and a Republican high of 69.1 points in 1896. Between 2020 and 2024 the county moved 8.6 points toward the Republican candidate; the 2024 margin was 36.7 points.
A population of 14,483, a 68% non-Hispanic-white share, and a median household income of $139,688 describe the county. The county's voting pattern over the last decade is most similar to that of Marin County and Bristol County.
Akashic
Political twins — counties
The counties 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.
How did Nantucket County, Massachusetts vote in 2024?
In 2024, Nantucket County, Massachusetts voted Democratic by 36.7 points (D+36.7), carried by the Democratic candidate. Out of 7,118 votes cast, 4,784 went Democratic and 2,171 went Republican.
When did Nantucket County, Massachusetts last vote Republican?
The most recent presidential election in which Nantucket County, Massachusetts voted Republican was 1984.
How many people live in Nantucket County, Massachusetts?
Nantucket County, Massachusetts has a population of 14,483 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Nantucket County, Massachusetts?
Median household income in Nantucket County, Massachusetts is $139,688 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of Nantucket County, Massachusetts?
Akashic tracks 38 presidential elections in Nantucket County, Massachusetts from 1876 to 2024. Of those, 13 went Democratic and 21 went Republican.
