Suffolk County, New York's estimated 2024 population is 1,518,366 with a growth rate of -0.32% in the past year according to the most recent United States census data. Suffolk County, New York is the 4th largest county in New York. The 2010 population was 1,494,337 and has seen a growth of 1.61% since that time.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 1,494,346 | -4,804 | -0.32% |
| 2028 | 1,499,150 | -4,804 | -0.32% |
| 2027 | 1,503,954 | -4,804 | -0.32% |
| 2026 | 1,508,758 | -4,804 | -0.32% |
| 2025 | 1,513,562 | -4,804 | -0.32% |
| 2024 | 1,518,366 | -4,804 | -0.32% |
| 2023 | 1,523,170 | -4,804 | -0.31% |
| 2022 | 1,527,974 | -5,841 | -0.38% |
| 2021 | 1,533,815 | 11,751 | 0.77% |
| 2020 | 1,522,064 | 43,739 | 2.96% |
| 2019 | 1,478,325 | -3,950 | -0.27% |
| 2018 | 1,482,275 | -1,587 | -0.11% |
| 2017 | 1,483,862 | -2,837 | -0.19% |
| 2016 | 1,486,699 | -5,298 | -0.36% |
| 2015 | 1,491,997 | -3,556 | -0.24% |
| 2014 | 1,495,553 | -1,836 | -0.12% |
| 2013 | 1,497,389 | 372 | 0.02% |
| 2012 | 1,497,017 | -1,893 | -0.13% |
| 2011 | 1,498,910 | 4,573 | 0.31% |
| 2010 | 1,494,337 | 0 | 0% |
| 1990 | 1,321,864 | 37,633 | 2.93% |
| 1980 | 1,284,231 | 159,281 | 14.16% |
| 1970 | 1,124,950 | 458,166 | 68.71% |
| 1960 | 666,784 | 390,655 | 141.48% |
| 1950 | 276,129 | 78,774 | 39.91% |
| 1940 | 197,355 | 36,300 | 22.54% |
| 1930 | 161,055 | 50,809 | 46.09% |
| 1920 | 110,246 | 14,108 | 14.67% |
| 1910 | 96,138 | 18,556 | 23.92% |
| 1900 | 77,582 | 15,091 | 24.15% |
| 1890 | 62,491 | 8,603 | 15.96% |
| 1880 | 53,888 | 6,964 | 14.84% |
| 1870 | 46,924 | 3,649 | 8.43% |
| 1860 | 43,275 | 6,353 | 17.21% |
| 1850 | 36,922 | 4,453 | 13.71% |
| 1840 | 32,469 | 5,689 | 21.24% |
| 1830 | 26,780 | 2,508 | 10.33% |
| 1820 | 24,272 | 3,159 | 14.96% |
| 1810 | 21,113 | 1,378 | 6.98% |
| 1800 | 19,735 | 3,295 | 20.04% |
| 1790 | 16,440 | -1,477,906 | -98.9% |
White
Two or more races
Black or African American
Other race
Asian
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 510,686 | 2.93 | 81.8 | 18.2 |
| Married | 288,384 | 3.54 | 90.5 | 9.5 |
| Non Family | 140,227 | 1.26 | 68.8 | 31.2 |
| Female | 56,069 | 3.67 | 72 | 28 |
| Male | 26,006 | 3.61 | 77 | 23 |
3.43
Average Family Size
2.93
Average Household Size
81.8%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 95.33%.
The highest rate of bachelors degrees is among asian people with a rate of 58.65%.
All
Male
Female
$63,680
Average Earnings
$75,165
Average Male
$53,709
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
76.9% of Suffolk County, New York residents speak only English, while 23.1% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 14.46% of the population.
rate
6.49%
Overall Poverty Rate
5.64%
Male Poverty Rate
7.34%
Female Poverty Rate
The race most likely to be in poverty in Suffolk County, New York is Native, with 10.94% below the poverty level.
The race least likely to be in poverty in Suffolk County, New York is White, with 4.95% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1%. Among those working part-time, it was 6.79%, and for those that did not work, the poverty rate was 13.61%.
Married
Widowed
Divorced
Separated
NeverMarried
50.3%
Overall Marriage Rate
52.2%
Male Marriage Rate
48.5%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.12%
Veteran Poverty Rate
25.33%
Veteran Disability Rate
LaborForceParticipation
65.8%
Labor Force Participation
62.6%
Employment Rate
4.8%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
75.23%
Born in Suffolk County, New York
84.02%
Native Born
15.98%
Foreign Born
6.48%
Non Citizen
9.5%
Naturalized
84.02% of Suffolk County, New York residents were born in the United States, with 75.23% having been born in New York. 6.48% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.