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COUNTY · 2020 ACS

Nassau County

New York · 1,395,774 residents · 285 sq mi
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The short version

Nassau County is a county of 1,395,774 people in New York. That is roughly 69% ahead of the New York median. Home values have more than doubled since 2000, reaching $524,400. Median household income runs $120,036, well clear of the $66,278 US median. Owners hold 79% of the housing stock. 47% of adults hold a bachelor's degree, against 33% nationally.

At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 41.9
US median: 38.8
More educated
47% hold a bachelor's degree
US average: 33%
Less affordable
home values up 45%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

1,395,774
+5%since 2000
from 1,334,544 in 2000
1990 – 2025
41.9
+9%since 2000
from 38.5 in 2000
US average: 38.8
Land area
285 sq mi
Population, 19902024
1.3M1.3M1.3M1.4M1.4M19902000201020202024Nassau County
20241.4M
1990201020202024
Age distribution, 2020
Under 55%(69,123)
US avg: 5.6%
5 to 95.8%(80,675)
US avg: 6.1%
10 to 146.5%(90,054)
US avg: 6.5%
15 to 196.6%(92,663)
US avg: 6.6%
20 to 246.5%(90,275)
US avg: 6.7%
25 to 3411.3%(158,197)
US avg: 13.5%
35 to 4412.1%(169,571)
US avg: 12.7%
45 to 5413.4%(186,641)
US avg: 12.3%
55 to 6414.4%(201,564)
US avg: 13.1%
65 to 7410.4%(145,414)
US avg: 10%
75 to 845.3%(73,475)
US avg: 4.9%
85 and over2.7%(38,122)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$120,036
+11%inflation adjusted, since 2000
from $72,030 in 2000
US average: $66,278
1990 – 2024
$53,363
+66%since 2000
from $32,151 in 2000
US average: $35,364
Households earning $100K+
69.0%
+9.4 ptssince 2009
from 59.6% in 2009
US average: 43.9%
5.4%
+0.2 ptssince 2000
from 5.2% in 2000
US average: 12.8%
Workforce by industry, 2020
Other services10.5%
US avg: 6.6%
Information9.5%
US avg: 11.1%
Public administration8.1%
US avg: 4.7%
Wholesale trade5.7%
US avg: 6.7%
Finance & insurance5.5%
US avg: 5.5%
Professional, scientific, technical4.8%
US avg: 4.7%
Retail trade4.4%
US avg: 10%
Transportation & warehousing3.2%
US avg: 2.5%
Arts, entertainment, food2.7%
US avg: 2%
Education & health services0.7%
US avg: 0.8%
Agriculture, forestry, fishing0.1%
US avg: 1.7%
Construction0.1%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$524,400
+45%inflation adjusted, since 2000
from $240,200 in 2000
US average: $265,253
1990 – 2024
$1,831
+26%inflation adjusted, since 2000
from $964 in 2000
US average: $1,124
78.7%
−1.6 ptssince 2000
from 80.3% in 2000
21.3% rent
2.97 people
−3%since 2009
from 3.05 people in 2009
US average: 2.61
4.4
−18%since 2009
from 5.3 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic74%(986,947)
Black9.7%(129,860)
Hispanic / Latino10%(133,282)
Asian4.7%(62,744)
Other0%
2020
White, non-Hispanic55.8%(779,454)
Black10.5%(147,216)
Hispanic / Latino18.4%(256,425)
Asian11.7%(163,165)
Other2.7%(37,079)
48
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Central American5.7%(77,780)
Salvadoran3.9%(52,867)
South American3.7%(50,201)
Puerto Rican2.7%(37,195)
Dominican2.1%(28,057)
Colombian1.2%(16,853)
Ecuadorian0.9%(11,940)
Honduran0.9%(11,824)
Mexican0.9%(11,793)
Peruvian0.8%(10,392)
Guatemalan0.6%(8,773)
Cuban0.5%(6,634)
+ 10 more hispanic origin groups with data
Spaniard0.3%(4,069)
Chilean0.3%(3,498)
Argentine0.2%(3,218)
Panamanian0.1%(1,607)
Uruguayan0.1%(1,559)
Costa Rican0.1%(1,474)
Venezuelan0.1%(971)
Bolivian0.1%(916)
Nicaraguan0.1%(739)
Paraguayan0%(348)
Asian origin
Asian Indian3.7%(50,708)
Chinese2.9%(39,020)
Korean1%(13,361)
Filipino0.8%(11,331)
Pakistani0.7%(10,150)
Bangladeshi0.2%(2,691)
Japanese0.1%(1,977)
Vietnamese0.1%(1,153)
Taiwanese0.1%(1,035)
Thai0%(630)
Sri Lankan0%(506)
Nepalese0%(279)
+ 6 more asian origin groups with data
Indonesian0%(178)
Burmese0%(146)
Malaysian0%(110)
Cambodian0%(62)
Laotian0%(44)
Pacific Islander origin
Chamorro0%(186)
Samoan0%(129)
Ancestry
Italian18.7%(253,471)
Irish13.2%(178,525)
German8.1%(110,358)
Polish4.5%(60,735)
West Indian4.2%(56,385)
American3.8%(51,416)
Russian3.2%(42,892)
English2.5%(34,558)
Haitian1.7%(22,736)
Jamaican1.7%(22,676)
Greek1.6%(21,510)
French0.8%(11,510)
+ 50 more ancestry groups with data
Hungarian0.8%(10,590)
Guyanese0.8%(10,258)
Iranian0.7%(9,127)
Austrian0.6%(7,771)
Scottish0.5%(7,334)
Portuguese0.5%(6,458)
Ukrainian0.4%(5,847)
Romanian0.4%(5,757)
Dutch0.4%(5,549)
Swedish0.4%(5,150)
Norwegian0.3%(4,423)
Israeli0.3%(3,902)
Czech0.3%(3,782)
Lithuanian0.3%(3,715)
Turkish0.2%(3,368)
Scotch-Irish0.2%(2,913)
Armenian0.2%(2,849)
British0.2%(2,836)
Croatian0.2%(2,801)
French Canadian0.2%(2,645)
Brazilian0.2%(2,266)
Egyptian0.2%(2,181)
Welsh0.1%(1,961)
Danish0.1%(1,860)
Nigerian0.1%(1,628)
Canadian0.1%(1,497)
Barbadian0.1%(1,482)
Swiss0.1%(1,353)
Finnish0.1%(1,284)
Lebanese0.1%(1,101)
Slovak0.1%(1,085)
Serbian0.1%(895)
Syrian0.1%(857)
Moroccan0.1%(855)
Latvian0.1%(718)
Belgian0%(588)
Macedonian0%(536)
Iraqi0%(512)
Australian0%(339)
Ghanaian0%(310)
Arab0%(307)
Bulgarian0%(296)
Jordanian0%(278)
Slovene0%(251)
Kenyan0%(178)
Ethiopian0%(138)
Section 05

Education

46.7%
+11.4 ptssince 2000
from 35.4% in 2000
US average: 32.9%
High school or higher
91.6%
+4.8 ptssince 2000
from 86.7% in 2000
US average: 88.5%
21.1%
+5.5 ptssince 2000
from 15.6% in 2000
US average: 12.7%
Section 06

Commute & transportation

36.6 min
+41%since 2000
from 26.0 min in 2000
US average: 26.9
66.4%
−2.8 ptssince 2009
from 69.2% in 2009
US average: 75.1%
6.5%
−0.4 ptssince 2009
from 6.9% in 2009
US average: 8.4%
Section 07

Work & employment

4.1%
−2.3 ptssince 2011
from 6.4% in 2011
US average: 5.4%
65.1%
−0.4 ptssince 2011
from 65.5% in 2011
US average: 63.4%
Women 20-64 in the labor force
75.5%
US average: 73.3%
47.4%
+4.9 ptssince 2009
from 42.5% in 2009
US average: 39.3%
Section 08

People & community

48.7%
+0.1 ptssince 2009
from 48.6% in 2009
51.3%
−0.1 ptssince 2009
from 51.4% in 2009
22.4%
+2.7 ptssince 2009
from 19.7% in 2009
US average: 13.5%
4.1%
−4.9 ptssince 2013
from 9.0% in 2013
US average: 8.8%
Computer in household
94.2%
US average: 91.9%
93.1%
US average: 86.2%
Marital status (2024)
Men 15+
Never married34.9%(195,038)
Married57.8%(322,974)
Widowed2.4%(13,519)
Divorced4.9%(27,330)
Women 15+
Never married30.2%(177,241)
Married52.9%(310,767)
Widowed8.8%(51,903)
Divorced8.1%(47,625)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

4.1%
−4.9 ptssince 2013
from 9.0% in 2013
US average: 8.8%
68.5%
US average: 55.4%
Direct-purchase
15.4%
US average: 13.7%
18.0%
US average: 17.6%
13.0%
US average: 20.0%
VA health care
0.9%
US average: 2.3%
Any private
80.9%
US average: 68.1%
Any public
28.5%
US average: 35.2%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2020
Gulf War (2001 or later)11.4%(4,601)
US avg: 20.6%
Gulf War (1990s)9.5%(3,826)
US avg: 21.4%
Vietnam era34.8%(14,033)
US avg: 35.2%
Korean War14%(5,664)
US avg: 7.6%
World War II8%(3,233)
US avg: 2.9%

Share of the 40,381 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Nassau County, New York?

Nassau County, New York has about 1,395,774 residents according to the 2020 American Community Survey.

What is the median household income in Nassau County, New York?

The typical household in Nassau County, New York earns about $120,036 a year. Half of households make more than that, and half make less.

Is Nassau County, New York expensive?

In Nassau County, New York, the median home is worth about $524,400, and the typical rent is about $1,831 a month.

How educated are people in Nassau County, New York?

About 46.7% of adults age 25 and over in Nassau County, New York hold a bachelor's degree or higher.

What is the poverty rate in Nassau County, New York?

About 5.4% of people in Nassau County, New York live below the federal poverty line.

Has Nassau County, New York grown since 1990?

Yes, Nassau County, New York has grown since 1990. The population has added about 108,426 residents, a change of about 8 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →