Nassau County, New York

2024 results by precinct

1,074 precincts · 715,665 votes cast

Trump · R+4

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−4.1%	338,424	368,117	715,665
2020	D	+9.5%	396,504	326,716	730,983
2016	D	+6.2%	332,154	292,025	647,122
2012	D	+7.6%	302,695	259,308	568,151
2008	D	+8.4%	342,185	288,776	635,618
2004	D	+5.6%	323,070	288,355	618,343
2000	D	+19.5%	342,226	227,060	590,439
1996	D	+19.6%	303,587	196,820	544,664
1992	D	+5.9%	282,593	246,881	609,326
1988	R	−14.7%	250,130	337,430	592,418
1984	R	−23.9%	240,697	392,017	634,063
1980	R	−21.1%	207,602	333,567	596,020
1976	R	−4.1%	302,869	329,176	635,756
1972	R	−26.8%	252,831	438,723	693,027
1968	R	−8.0%	278,599	329,792	643,195
1964	D	+21.2%	382,590	248,886	632,115
1960	R	−10.4%	263,303	324,255	588,319
1956	R	−38.2%	166,646	372,358	539,004
1952	R	−40.1%	130,267	305,900	438,090
1948	R	−42.9%	70,492	184,284	265,238
1944	R	−34.0%	78,512	159,713	238,801
1940	R	−32.4%	73,171	143,672	217,293
1936	R	−12.0%	74,232	94,968	172,779
1932	R	−11.7%	61,752	78,544	144,100
1928	R	−27.3%	40,079	71,015	113,140
1924	R	−48.4%	14,322	45,825	65,031
1920	R	−56.6%	8,595	33,099	43,331
1916	R	−24.3%	8,430	13,910	22,555
1912	D	+13.3%	7,073	4,608	18,546
1908	R	−31.6%	4,883	9,787	15,525
1904	R	−21.5%	5,282	8,222	13,699
1900	R	−23.3%	4,325	6,994	11,460
1896	—	No data	—	—	—
1892	—	No data	—	—	—
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

American

100.0%

African American

9.0%

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. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 42.0 in this county, 39.1 nationally

Male

Age

Female

0.9%

85+

1.7%

2.4%

75–84

3.0%

5.1%

65–74

5.6%

7.0%

55–64

7.3%

6.5%

45–54

6.6%

6.2%

35–44

6.3%

5.9%

25–34

5.8%

4.2%

18–24

4.1%

8.4%

5–17

7.9%

2.7%

2.6%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$146,202

Nassau County ranks in the top 0.5% of US counties.

Nassau County$146,202

New York$85,974

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

5.4%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

46.5%

Non-Christian

9.2%

Other Christian

3.4%

Mainline Protestant

2.4%

Methodist

1.1%

Baptist

0.9%

Pentecostal & Holiness

0.9%

Source · 2020 US Religion Census. Remaining 35.6% of residents not counted as adherents by any reporting body.

Nassau shifted from a reliable Democratic presidential county to an R+4.2 result in 2024, a roughly 12-point swing over twelve years driven largely by movement among suburban white and Hispanic working-class voters.

The Democratic margin in Nassau County has rarely exceeded twenty-one points in modern history; the Republican margin has rarely exceeded fifty-seven points. 2024 delivered the county to the Republican candidate by four points.

Nassau County's demographics resemble the country more than they resemble most counties. A 57% non-Hispanic-white share, a 5% poverty rate, and a median household income of $146,202 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Atlantic County and Gloucester County.

Most similar counties

Nassau County votes the way the country votes.