Nantucket County, Massachusetts: Diversifying Metro county. In 2024, voted D+37%. Republican peak: R+69 in 1896.
Key facts
- 2024 presidential margin
- D+37MIT Election Lab
- Political typology
- Diversifying MetroAkashic typology
- Population
- 14,4832024 5-year
- Median household income
- $139,6882024 5-year
- White (non-Hispanic)
- 69.7%2024 5-year
- Black
- 9.5%2024 5-year
- Hispanic / Latino
- 17.0%2024 5-year
- Peak Democratic margin
- D+45 in 2020MIT Election Lab
- Peak Republican margin
- R+69 in 1896MIT Election Lab
- Most similar
- Dukes County, MA · similarity 0.99
2024 results by precinct
2024 precinct map of Nantucket CountyPrecinct-level 2024 presidential results for Nantucket County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −32.7% |
| 1896 | −69.1% |
| 1900 | −55.8% |
| 1904 | −37.0% |
| 1908 | −44.0% |
| 1912 | +22.0% |
| 1916 | +10.3% |
| 1920 | −49.4% |
| 1924 | −60.9% |
| 1928 | −37.3% |
| 1932 | −18.2% |
| 1936 | −27.3% |
| 1940 | −23.7% |
| 1944 | −15.6% |
| 1948 | −41.9% |
| 1952 | −57.2% |
| 1956 | −66.6% |
| 1960 | −27.1% |
| 1964 | +34.1% |
| 1968 | −13.8% |
| 1972 | −19.6% |
| 1976 | −10.8% |
| 1980 | −3.8% |
| 1984 | −7.6% |
| 1988 | +19.8% |
| 1992 | +20.8% |
| 1996 | +29.6% |
| 2000 | +25.4% |
| 2004 | +27.4% |
| 2008 | +36.5% |
| 2012 | +26.8% |
| 2016 | +34.2% |
| 2020 | +45.3% |
| 2024 | +36.7% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 4,784 | 2,171 | 7,118 | ||
| D | 5,241 | 1,914 | 7,338 | ||
| D | 4,146 | 1,892 | 6,583 | ||
| D | 3,830 | 2,187 | 6,120 | ||
| D | 4,073 | 1,863 | 6,052 | ||
| D | 3,608 | 2,040 | 5,724 | ||
| D | 2,874 | 1,624 | 4,926 | ||
| D | 2,453 | 1,222 | 4,159 | ||
| D | 2,037 | 1,158 | 4,216 | ||
| D | 2,209 | 1,469 | 3,731 | ||
| R | 1,456 | 1,697 | 3,170 | ||
| R | 1,040 | 1,149 | 2,838 | ||
| R | 1,115 | 1,399 | 2,626 | ||
| R | 952 | 1,418 | 2,380 | ||
| R | 744 | 991 | 1,792 | ||
| D | 1,197 | 587 | 1,787 | ||
| R | 698 | 1,219 | 1,919 | ||
| R | 317 | 1,582 | 1,900 | ||
| R | 405 | 1,490 | 1,897 | ||
| R | 409 | 1,013 | 1,442 | ||
| R | 569 | 779 | 1,349 | ||
| R | 624 | 1,015 | 1,647 | ||
| R | 548 | 969 | 1,544 | ||
| R | 561 | 812 | 1,380 | ||
| R | 395 | 865 | 1,261 | ||
| R | 167 | 708 | 889 | ||
| R | 205 | 608 | 816 | ||
| D | 307 | 249 | 564 | ||
| D | 247 | 123 | 564 | ||
| R | 136 | 359 | 507 | ||
| R | 170 | 378 | 562 | ||
| R | 102 | 375 | 489 | ||
| R | 62 | 485 | 612 | ||
| R | 220 | 440 | 672 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
19.2%
English
15.1%
Italian
9.0%
German
6.3%
French
4.5%
Polish
2.7%
American
2.7%
African American
7.6%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 42.4 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$139,688
Nantucket County ranks in the top 0.5% of US counties.
Nantucket County$139,688
Massachusetts$103,960
United States$80,734
Nantucket County ranks in the top 0.5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
3.2%
Child poverty is below the national average.
Children under 180.8%
Working age (18–64)2.9%
Seniors (65+)13.5%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
81.3%
speak English only
Spanish12.2%
Other Indo-European4.7%
Asian & Pacific Islander1.6%
Other languages0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 67.3% of residents not counted as adherents by any reporting body.
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.
The Democratic margin here reached forty-five points in 2020. Between 2020 and 2024 the county moved nine points toward the Republican candidate; the 2024 margin was thirty-seven points.
A population of 14,483, a 70% 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 Dukes County and Ramsey County.
Most similar counties
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Nantucket County, Massachusetts. Akashic. https://akashic.app/county/25019/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in Massachusetts
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Frequently asked questions
How did Nantucket County, Massachusetts vote in 2024?
In 2024, Nantucket County, Massachusetts voted Democratic by 36.7 points (D+37), carried by the Democratic candidate. Out of 7,118 votes cast, 4,784 went Democratic and 2,171 went Republican.
What is Nantucket County, Massachusetts's political typology?
Akashic places Nantucket County, Massachusetts in the "Diversifying Metro" typology — Mid-size metropolitan counties growing more diverse and trending Democratic. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 13 times, Republican 21 times, and other 0 times.
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. The county's typology — "Diversifying Metro" — captures where that record, its demographics, and its recent swing place it among American communities.