Suffolk County, New York Population 2021

Suffolk County, New York's estimated population is 1,468,140 with a growth rate of -0.29% in the past year according to the most recent United States census data. Suffolk County, New York is the null largest county in New York. The 2010 Population was 1,494,340 and has seen a growth of -1.75% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
20211,468,140-4,230-0.29%
20201,472,370-4,230-0.29%
20191,476,600-4,230-0.29%
20181,480,830-2,530-0.17%
20171,483,360-3,050-0.21%
20161,486,410-5,560-0.37%
20151,491,970-3,550-0.24%
20141,495,520-1,830-0.12%
20131,497,3503700.02%
20121,496,980-1,910-0.13%
20111,498,8904,5500.30%
20101,494,340172,48013.05%
19901,321,86037,6302.93%
19801,284,230159,28014.16%
19701,124,950458,16668.71%
1960666,784390,655141.48%
1950276,12978,77439.91%
1940197,35536,30022.54%
1930161,05550,80946.09%
1920110,24614,10814.67%
191096,13818,55623.92%
190077,58215,09124.15%
189062,4918,60315.96%
188053,8886,96414.84%
187046,9243,6498.43%
186043,2756,35317.21%
185036,9224,45313.71%
184032,4695,68921.24%
183026,7802,50810.33%
182024,2723,15914.96%
181021,1131,3786.98%
180019,7353,29520.04%
179016,4400.00%
2021 Growth Rate
-0.29%
County Website
Founded
1683
County Seat
2010 Population
1,494,340
Growth Since 2010
-1.75%
Loading...

Suffolk County, New York Population Growth

Population by Race

Race Population Percentage
White1,196,71980.65%
Black or African American116,0187.82%
Some Other Race74,4325.02%
Asian58,2043.92%
Two or More Races33,8292.28%
American Indian and Alaska Native4,2120.28%
Native Hawaiian and Other Pacific Islander4180.03%
Loading...

Suffolk County, New York Population By Race

Suffolk County, New York Population Pyramid 2021

Loading...

Suffolk County, New York Median Age

41.5


Total

40


Male

43.1


Female

Suffolk County, New York Adults

There are 1,165,620 adults, (244,871 of whom are seniors) in Suffolk County, New York.

Suffolk County, New York Age Dependency

61.2

Age Dependency Ratio

26.6

Old Age Dependency Ratio

34.6

Child Dependency Ratio

Suffolk County, New York Sex Ratio

Mujer

753,405

50.77%

Masculino

730,427

49.23%

Suffolk County, New York Population by Age

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

Loading...

Suffolk County, New York Household Types

Type Owner Renter
Married89.9%10.1%
All80.6%19.4%
Masculino74.5%25.5%
Mujer69.2%30.8%
Non Family66.6%33.4%

80.6%

Rate of Home Ownership

Suffolk County, New York Households and Families

Type Count Average Size Owned
All489,3012.9780.6
Married278,9573.5889.9
Non Family132,8751.2466.6
Mujer54,2103.7969.2
Masculino23,2593.7574.5

3.5

Average Family Size

2.97

Average Household Size

Loading...

Suffolk County, New York Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade44,9354.36%
9th to 12th Grade52,1555.06%
High School Graduate281,92227.35%
Some College179,60417.42%
Associates Degree97,5619.46%
Bachelors Degree203,59419.75%
Graduate Degree171,07116.60%
Loading...

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

Suffolk County, New York Educational Attainment by Race

Loading...
Race Total High School Bachelors
White741,904705,289299,097
Hispanic166,610120,05630,083
Black73,94464,63619,117
Other Race43,24928,8196,500
Asian38,52434,68422,552
2+ Races14,48111,7724,558
Native American2,9292,157542
Islander310235101

The highest rate of high school graduation is among white people with a rate of 95.06%.

The highest rate of bachelors degrees is among asian people with a rate of 58.54%.

Suffolk County, New York Educational Attainment by Race

Loading...
Name Average Masculino Mujer
Overall$53,210$63,242$43,762
Less Than 9th Grade$28,969$32,479$22,404
High School Graduate$41,742$51,108$31,552
Some College$50,051$62,136$39,338
Bachelors Degree$66,040$82,096$53,739
Graduate Degree$90,081$106,828$77,928

$53,210

Average Earnings

$63,242

Average Male

$43,762

Average Female

Suffolk County, New York Earnings by Educational Attainment

Suffolk County, New York Language by Age

Loading...

Suffolk County, New York Language

77.30% of Suffolk County, New York residents speak only English, while 22.70% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 14.32% of the population.

Suffolk County, New York Language

Suffolk County, New York Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White990,45046,9514.74%
Hispanic280,93135,68812.70%
Black112,26012,52811.16%
Other72,29410,00313.84%
Asian53,3213,9377.38%
Multiple32,0983,55011.06%
Native4,05452312.90%
Islander3995413.53%

6.87%

Overall Poverty Rate

6.06%

Male Poverty Rate

7.66%

Female Poverty Rate

Poverty in Suffolk County, New York

The race most likely to be in poverty in Suffolk County, New York is Other, with 13.84% below the poverty level.

The race least likely to be in poverty in Suffolk County, New York is White, with 4.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.28%. Among those working part-time, it was 7.39%, and for those that did not work, the poverty rate was 12.65%.

Suffolk County, New York Poverty

Loading...
Name Poverty
Less Than 9th Grade16.72%
High School7.96%
Some College4.87%
Bachelors or Greater2.91%

Suffolk County, New York Poverty Rate by Education

Loading...
Name Poverty
Female Unemployed18.59%
Male Unemployed15.95%
Female Employed3.24%
Male Employed2.56%

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

Suffolk County, New York Income by Household Type

Loading...
Name Median Mean
Households$101,031$129,192
Families$118,663$146,978
Married Families$132,042$162,439
Non Families$51,021$72,868
Loading...

Income by Household Type

Suffolk County, New York Marital Status

Loading...

Marriage Rates

50.8%

Overall Marriage Rate

52.8%

Male Marriage Rate

48.9%

Female Marriage Rate

Suffolk County, New York Married by Age and Sex

Loading...

Suffolk County, New York Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

Suffolk County, New York Marital Status by Race

Loading...

Suffolk County, New York Marital Status

Loading...

61,090

Number of Veterans

57,616

Male Veterans

3,474

Female Veterans

War Veterans
Vietnam23,513
Korea7,583
First Gulf War7,100
Second Gulf War5,977
World War II3,436

Suffolk County, New York Veterans by War

Loading...
Age Group Veterans
75+21,165
65 to 7418,560
35 to 5410,111
55 to 648,430
18 to 342,824

Suffolk County, New York Veterans by Age

Loading...
Name Veterans % of Total
White55,2735.77%
Hispanic4,7542.43%
Black3,7114.25%
Other Race7511.45%
2+ Races5853.14%
Asian5821.27%
Native American1765.14%
Islander123.14%

Suffolk County, New York Veterans by Race

Suffolk County, New York Veterans by Education

Loading...

4.44%

Veteran Poverty Rate

24.05%

Veteran Disability Rate

Suffolk County, New York Veterans by Education

Loading...

65.1%

Labor Force Participation

62.3%

Employment Rate

4.2%

Unemployment Rate

Suffolk County, New York Employment by Age

Loading...

Suffolk County, New York Employment by Race

Loading...

Suffolk County, New York Employment by Education

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...

76.11%

Born in Suffolk County, New York

84.44%

Native Born

15.56%

Foreign Born

6.73%

Non Citizen

8.83%

Naturalized

Place of Birth

84.44% of Suffolk County, New York residents were born in the United States, with 76.11% having been born in New York. 6.73% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Suffolk County, New York Place of Birth

  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

Sources