Suffolk County's estimated 2026 population is 1,549,669 with a growth rate of 0.45% in the past year according to the most recent United States census data. Suffolk County is the 4th largest county in New York. The 2010 population was 1,494,337 and has seen a growth of 3.7% since that time.
Data after 2023 is projected based on recent change
The racial composition of Suffolk County includes 68.89% White, 8.84% other race, 7.42% Black or African American, 4.31% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (68.89%)
Two or more races (10.13%)
Other race (8.84%)
Black or African American (7.42%)
Asian (4.31%)
Native American (0.4%)
Native Hawaiian or Pacific Islander (0.02%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,051,038 | 68.89% |
| Two or more races | 154,595 | 10.13% |
| Other race | 134,856 | 8.84% |
| Black or African American | 113,159 | 7.42% |
| Asian | 65,731 | 4.31% |
| Native American | 6,033 | 0.4% |
| Native Hawaiian or Pacific Islander | 268 | 0.02% |
Married
Widowed
Divorced
Separated
Never Married
Suffolk County's average per capita income is $65,759. Household income levels show a median of $128,329. The poverty rate stands at 6.38%.
Name | Median | Mean |
|---|---|---|
| Married Families | $164,301 | $202,791 |
| Families | $147,792 | $184,778 |
| Households | $128,329 | $163,151 |
| Non Families | $65,905 | $93,296 |
Average Income
Median Household Income
Poverty Rate