Nassau County, New York Population 2024

1,368,954

Nassau County, New York's estimated 2024 population is 1,368,954 with a growth rate of -0.54% in the past year according to the most recent United States census data. Nassau County, New York is the 5th largest county in New York. The 2010 population was 1,341,642 and has seen a growth of 2.04% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20291,332,024-7,386-0.55%
20281,339,410-7,386-0.55%
20271,346,796-7,386-0.55%
20261,354,182-7,386-0.54%
20251,361,568-7,386-0.54%
20241,368,954-7,386-0.54%
20231,376,340-7,386-0.53%
20221,383,726-7,386-0.53%
20211,391,1125530.04%
20201,390,55934,4862.54%
20191,356,073-1,350-0.1%
20181,357,4231630.01%
20171,357,2601,1930.09%
20161,356,0671,0800.08%
20151,354,9871360.01%
20141,354,8512,4960.18%
20131,352,3552,6020.19%
20121,349,7533,5460.26%
20111,346,2074,5650.34%
20101,341,642
19901,287,348-34,234-2.59%
19801,321,582-106,498-7.46%
19701,428,080127,9099.84%
19601,300,171627,40693.26%
1950672,765266,01765.4%
1940406,748103,69534.22%
1930303,053176,933140.29%
1920126,12042,19050.27%
191083,93028,48251.37%
190055,448-1,276,576-95.84%
showing: 30 rows
2024 Growth Rate
-0.54% (-7,386)
County Website
Nassau County
County Seat
2020 Population
1,390,559
Area
285 mi²
Density
4803 people/mi²
Growth Since 2020
-1.55% (-21,605)
Founded
1899

Nassau County, New York Population 2024

Population by Race

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Race
Population
Percentage (of total)
White861,43262.01%
Black or African American160,93611.59%
Asian156,36311.26%
Other race109,6897.9%
Two or more races96,6006.95%
Native American3,6950.27%
Native Hawaiian or Pacific Islander4450.03%
showing: 7 rows

White

Black or African American

Asian

Other race

Two or more races

Native American

Native Hawaiian or Pacific Islander

Nassau County, New York Population by Race

Nassau County, New York Population Pyramid 2024

Nassau County, New York Median Age

41.7

Total

40.3

Male

43.1

Female

Nassau County, New York Adults

There are 1,091,441 adults, (250,475 of whom are seniors) in Nassau County, New York.

Nassau County, New York Age Dependency

65.2

Age Dependency Ratio

29.8

Old Age Dependency Ratio

35.4

Child Dependency Ratio

Nassau County, New York Sex Ratio

Female705,50050.79%
Male683,66049.21%

Nassau County, New York Population by Age

Nassau County, New York Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All454,7713.0181.818.2
Married276,8073.5590.29.8
Non Family104,3151.2466.633.4
Female51,9173.571.428.6
Male21,7323.4673.326.7
showing: 5 rows

3.45

Average Family Size

3.01

Average Household Size

81.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Nassau County, New York Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Nassau County, New York Educational Attainment by Sex (over 25)

Nassau County, New York Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 95.95%.

The highest rate of bachelors degrees is among asian people with a rate of 64.74%.

Nassau County, New York Educational Attainment by Race

All

Male

Female

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$69,888

Average Earnings

$82,620

Average Male

$57,843

Average Female

Nassau County, New York Earnings by Educational Attainment

Nassau County, New York Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Nassau County, New York Language

70.57% of Nassau County, New York residents speak only English, while 29.43% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.9% of the population.

Nassau County, New York Language

Nassau County, New York Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White776,80229,3313.78%
Hispanic240,41122,3379.29%
Other108,28713,16512.16%
Black157,15210,9706.98%
Asian155,4337,9735.13%
Multiple95,5846,1996.49%
Native3,6293469.53%
Islander38830.77%
showing: 8 rows

5.38%

Overall Poverty Rate

4.72%

Male Poverty Rate

6.03%

Female Poverty Rate

Poverty in Nassau County, New York

The race most likely to be in poverty in Nassau County, New York is Other, with 12.16% below the poverty level.

The race least likely to be in poverty in Nassau County, New York is Islander, with 0.77% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.91%. Among those working part-time, it was 6.21%, and for those that did not work, the poverty rate was 11.04%.

Nassau County, New York Poverty

rate

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Rate
Poverty
Less Than 9th Grade15.43%
High School7.11%
Some College4.61%
Bachelors or Greater2.52%
showing: 4 rows

Nassau County, New York Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed11.86%
Female Unemployed9.04%
Female Employed2.68%
Male Employed1.87%
showing: 4 rows

Nassau County, New York Poverty Rate by Employment Status and Sex

Nassau County, New York Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Nassau County, New York Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

53.6%

Overall Marriage Rate

56.3%

Male Marriage Rate

50.9%

Female Marriage Rate

Nassau County, New York Married by Age and Sex

male

female

Nassau County, New York Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Nassau County, New York Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Nassau County, New York Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

35,821

Number of Veterans

34,134

Male Veterans

1,687

Female Veterans

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Nassau County, New York Veterans by War

count

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Nassau County, New York Veterans by Age

count

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Nassau County, New York Veterans by Race

Nassau County, New York Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

4.88%

Veteran Poverty Rate

28.66%

Veteran Disability Rate

Nassau County, New York Veterans by Education

LaborForceParticipation

65.6%

Labor Force Participation

62.5%

Employment Rate

4.6%

Unemployment Rate

Nassau County, New York Employment by Age

LaborForceParticipation

Nassau County, New York Employment by Race

LaborForceParticipation

Nassau County, New York Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

70.03%

Born in Nassau County, New York

77.21%

Native Born

22.79%

Foreign Born

6.96%

Non Citizen

15.83%

Naturalized

Place of Birth

77.21% of Nassau County, New York residents were born in the United States, with 70.03% having been born in New York. 6.96% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Nassau County, New York Place of Birth

Sources