Suffolk County, New York: New American county. In 2024, voted R+10%. Republican peak: R+55 in 1956.
Key facts
- 2024 presidential margin
- R+10MIT Election Lab
- Political typology
- New AmericanAkashic typology
- Population
- 1,530,1462024 5-year
- Median household income
- $130,6862024 5-year
- White (non-Hispanic)
- 65.8%2024 5-year
- Black
- 7.5%2024 5-year
- Hispanic / Latino
- 22.8%2024 5-year
- Peak Democratic margin
- D+16 in 1996MIT Election Lab
- Peak Republican margin
- R+55 in 1956MIT Election Lab
- Most similar
- Pinellas County, FL · similarity 0.93
2024 results by precinct
2024 precinct map of Suffolk CountyPrecinct-level 2024 presidential results for Suffolk 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 | −5.1% |
| 1896 | −39.1% |
| 1900 | −24.3% |
| 1904 | −18.1% |
| 1908 | −27.1% |
| 1912 | +11.6% |
| 1916 | −20.1% |
| 1920 | −48.9% |
| 1924 | −47.1% |
| 1928 | −34.3% |
| 1932 | −13.0% |
| 1936 | −18.8% |
| 1940 | −30.5% |
| 1944 | −35.4% |
| 1948 | −42.9% |
| 1952 | −49.3% |
| 1956 | −55.3% |
| 1960 | −18.7% |
| 1964 | +11.1% |
| 1968 | −25.5% |
| 1972 | −40.9% |
| 1976 | −8.8% |
| 1980 | −23.7% |
| 1984 | −32.3% |
| 1988 | −21.8% |
| 1992 | −1.5% |
| 1996 | +15.7% |
| 2000 | +11.4% |
| 2004 | +0.9% |
| 2008 | +6.0% |
| 2012 | +3.7% |
| 2016 | −6.8% |
| 2020 | −0.0% |
| 2024 | −9.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 341,812 | 417,549 | 762,849 | ||
| R | 381,021 | 381,253 | 771,751 | ||
| R | 303,951 | 350,570 | 681,254 | ||
| D | 304,079 | 282,131 | 594,266 | ||
| D | 346,549 | 307,021 | 659,779 | ||
| D | 315,909 | 309,949 | 638,712 | ||
| D | 306,306 | 240,992 | 573,944 | ||
| D | 261,828 | 182,510 | 505,213 | ||
| R | 220,811 | 229,467 | 567,955 | ||
| R | 199,215 | 311,242 | 514,350 | ||
| R | 171,295 | 335,485 | 508,056 | ||
| R | 149,945 | 256,294 | 449,655 | ||
| R | 208,263 | 248,908 | 460,048 | ||
| R | 132,441 | 316,452 | 449,898 | ||
| R | 122,590 | 218,027 | 374,767 | ||
| D | 180,598 | 144,350 | 325,333 | ||
| R | 114,033 | 166,644 | 280,945 | ||
| R | 48,323 | 167,805 | 216,128 | ||
| R | 39,120 | 115,570 | 155,050 | ||
| R | 29,104 | 75,519 | 108,265 | ||
| R | 31,231 | 65,650 | 97,134 | ||
| R | 33,853 | 63,712 | 97,835 | ||
| R | 33,078 | 48,970 | 84,335 | ||
| R | 30,799 | 40,247 | 72,528 | ||
| R | 19,497 | 41,199 | 63,315 | ||
| R | 10,024 | 31,456 | 45,455 | ||
| R | 8,852 | 26,737 | 36,574 | ||
| R | 8,422 | 12,742 | 21,522 | ||
| D | 7,878 | 5,595 | 19,655 | ||
| R | 5,877 | 10,689 | 17,730 | ||
| R | 6,795 | 9,937 | 17,374 | ||
| R | 5,711 | 9,584 | 15,910 | ||
| R | 3,872 | 9,388 | 14,097 | ||
| R | 6,274 | 7,001 | 14,203 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Italian
20.6%
Irish
16.2%
German
11.0%
English
4.2%
Polish
4.0%
American
3.9%
French
1.0%
African American
6.0%
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: 41.7 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
$130,686
Suffolk County ranks in the top 0.5% of US counties.
Suffolk County$130,686
New York$85,974
United States$80,734
Suffolk 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
6.4%
Child poverty is below the national average.
Children under 187.1%
Working age (18–64)6.0%
Seniors (65+)8.9%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
75.2%
speak English only
Spanish16.1%
Other Indo-European5.9%
Asian & Pacific Islander2.1%
Other languages0.7%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 33.0% of residents not counted as adherents by any reporting body.
Once reliably competitive, Suffolk has moved toward Republican margins not seen since the early 2000s, driven partly by cost-of-living concerns among its large blue-collar and suburban homeowner population.
Suffolk County has leaned Republican in recent presidential elections, reaching a Democratic margin of sixteen points in 1996. Between 2020 and 2024 it moved ten points toward the Republican candidate — part of the sharpest rightward shift recorded among any group of places in the country.
Its demographics describe the shift: a 66% non-Hispanic-white share, a median household income of $130,686, and a population of 1,530,146. The county's voting pattern over the last decade is most similar to that of Pinellas County and St. Lucie 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.
Suffolk County, New York. Akashic. https://akashic.app/county/36103/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Suffolk County, New York vote in 2024?
In 2024, Suffolk County, New York voted Republican by 9.9 points (R+10), carried by the Republican candidate. Out of 762,849 votes cast, 341,812 went Democratic and 417,549 went Republican.
What is Suffolk County, New York's political typology?
Akashic places Suffolk County, New York in the "New American" typology — Communities where a large share of households speak a language other than English — multilingual, Democratic-leaning overall, yet the hardest-swinging bloc toward the Republican Party in 2024. 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 7 times, Republican 27 times, and other 0 times.
When did Suffolk County, New York last vote Democratic?
The most recent presidential election in which Suffolk County, New York voted Democratic was 2012.
How many people live in Suffolk County, New York?
Suffolk County, New York has a population of 1,530,146 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Suffolk County, New York?
Median household income in Suffolk County, New York is $130,686 — above the national median of $80,734. The New York state median is $85,974.
What is the political history of Suffolk County, New York?
Akashic tracks 38 presidential elections in Suffolk County, New York from 1876 to 2024. Of those, 7 went Democratic and 27 went Republican. The county's typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.