Nassau County, New York Population 2020

Nassau County, New York's estimated population is 1,359,700 with a growth rate of 0.05% in the past year according to the most recent United States census data. Nassau County, New York is the 6th largest county in New York.

Year Population Growth Growth Rate
20201,359,7006800.05%
20191,359,0206800.05%
20181,358,3406800.05%
20171,357,6601,2000.09%
20161,356,4601,1400.08%
20151,355,3202900.02%
20141,355,0302,6300.19%
20131,352,4002,6800.20%
20121,349,7203,5400.26%
20111,346,1804,4900.33%
20101,341,69054,3404.22%
19901,287,350-34,230-2.59%
19801,321,580-106,500-7.46%
19701,428,080127,9109.84%
19601,300,170627,40593.26%
1950672,765266,01765.40%
1940406,748103,69534.22%
1930303,053176,933140.29%
1920126,12042,19050.27%
191083,93028,48251.37%
190055,4480.00%
2020 Growth Rate
0.05%
County Website
Founded
1899
County Seat
Loading...

Nassau County, New York Population Growth

Population by Race

Race Population Percentage
White930,44668.59%
Black or African American158,70811.70%
Asian125,7679.27%
Some Other Race96,5817.12%
Two or More Races41,1283.03%
American Indian and Alaska Native3,5830.26%
Native Hawaiian and Other Pacific Islander3510.03%
Loading...

Nassau County, New York Population Pyramid 2020

Loading...

Nassau County, New York Median Age

41.6


Total

39.8


Male

43.2


Female

Nassau County, New York Adults

There are 1,061,460 adults, (232,164 of whom are seniors) in Nassau County, New York.

Nassau County, New York Age Dependency

63.6

Age Dependency Ratio

28

Old Age Dependency Ratio

35.6

Child Dependency Ratio

Nassau County, New York Sex Ratio

Female

697,159

51.39%

Male

659,405

48.61%

Nassau County, New York Households and Families

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

Loading...

Nassau County, New York Household Types

Type Owner Renter
Married89%11%
All80.6%19.4%
Male70.5%29.5%
Female70%30%
Non Family65.6%34.4%

80.6%

Rate of Home Ownership

Type Count Average Size Owned
All445,517380.6
Married272,9343.5589
Non Family103,5251.2165.6
Female50,0553.4670
Male19,0033.6470.5

3.46

Average Family Size

3

Average Household Size

3.5%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

Loading...

Nassau County, New York Education

Loading...
Education Attained Count Percentage
Less Than 9th Grade43,5134.63%
9th to 12th Grade38,8284.13%
High School Graduate216,53923.02%
Some College142,75715.18%
Associates Degree73,8867.86%
Bachelors Degree232,75524.75%
Graduate Degree192,33220.45%
Loading...

Nassau County, New York Educational Attainment by Race

Loading...
Name Total High School Bachelors
White600,858574,507300,892
Hispanic136,83898,55931,106
Black106,09396,12434,063
Asian86,52779,64054,788
Other Race58,51039,0739,857
Multiple Races19,81015,1406,070
Native American2,0191,509458
Islander20813948

The highest rate of high school graduation is among white people with a rate of 95.61%.

The highest rate of bachelors degrees is among asian people with a rate of 63.32%.

Loading...
Name Average Male Female
Overall$57,312$69,290$47,403
Less Than High School$25,385$30,631$18,180
High School Grad$38,096$48,056$29,372
Some College$49,230$61,560$38,872
Bachelors Degree$72,442$89,099$57,982
Graduate Degree$90,454$108,518$78,220

$57,312

Average Earnings

$69,290

Average Male

$47,403

Average Female

Nassau County, New York Language

Nassau County, New York Language by Age

Loading...

Nassau County, New York Language

71.65% of Nassau County, New York residents speak only English, while 28.35% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.91% of the population.

Nassau County, New York Poverty

Nassau County, New York Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White813,84929,2433.59%
Hispanic222,21926,91312.11%
Other95,05014,50515.26%
Black154,77912,6028.14%
Asian124,7675,7364.60%
Multiple40,2954,0239.98%
Native3,54377521.87%
Islander348164.60%

5.72%

Overall Poverty Rate

5.07%

Male Poverty Rate

6.33%

Female Poverty Rate

Poverty in Nassau County, New York

The race most likely to be in poverty in Nassau County, New York is Native, with 21.87% below the poverty level.

The race least likely to be in poverty in Nassau County, New York is White, with 3.59% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.14%. Among those working part-time, it was 6.67%, and for those that did not work, the poverty rate was 10.47%.

Loading...
Name Poverty
Less Than High School15.61%
High School6.80%
Some College4.46%
Bachelors or Greater2.41%
Loading...
Name Poverty
Female Unemployed12.51%
Male Unemployed11.86%
Female Employed3.09%
Male Employed2.26%

Nassau County, New York Income

Nassau County, New York Income by Household Type

Loading...
Name Median Mean
Households$111,240$146,552
Families$129,807$165,834
Married Families$145,131$182,952
Non Families$50,335$74,577
Loading...

Nassau County, New York Marital Status

Nassau County, New York Marital Status

Loading...

Marriage Rates

54.0%

Overall Marriage Rate

56.9%

Male Marriage Rate

51.3%

Female Marriage Rate

Nassau County, New York Married by Age and Sex

Loading...

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

Loading...

Nassau County, New York Veterans

Loading...

45,513

Number of Veterans

43,473

Male Veterans

2,040

Female Veterans

War Veterans
Vietnam16,004
Korea7,094
World War II5,131
Second Gulf War3,965
First Gulf War3,602
Loading...
Age Group Veterans
75+19,121
65 to 7413,971
35 to 545,587
55 to 644,714
18 to 342,120
Loading...
Name Veterans % of Total
White39,5875.32%
Black3,7593.05%
Hispanic2,7091.69%
Asian9270.96%
Other6851.00%
2 or More4691.88%
Indian682.74%
Hawaiian186.67%

Nassau County, New York Veterans by Education

Loading...

3.56%

Veteran Poverty Rate

28.82%

Veteran Disability Rate

Nassau County, New York Employment Status

Loading...

65.1%

Labor Force Participation

62.3%

Employment Rate

4.3%

Unemployment Rate

Loading...
Loading...

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

70.54%

Born in New York

77.78%

Native Born

22.22%

Foreign Born

8.00%

Non Citizen

14.22%

Naturalized

Place of Birth

77.78% of Nassau County, New York residents were born in the United States, with 70.54% having been born in New York. 8.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990