Suffolk County's estimated 2026 population is 1,548,850 with a growth rate of 0.18% 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 3.65% since that time.
Data after 2023 is projected based on recent change
Overall: 41.7 years
Female: 43.1 years
Male: 40.4 years
There are 1,212,247 adults, (274,038 of whom are seniors) in Suffolk County.
Female: 771,191 (50.4%)
Male: 758,955 (49.6%)
The racial composition of Suffolk County includes 65.82% White, 9.85% other race, 7.51% Black or African American, 4.49% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,007,146 | 65.82% |
| Two or more races | 181,580 | 11.87% |
| Other race | 150,706 | 9.85% |
| Black or African American | 114,943 | 7.51% |
| Asian | 68,632 | 4.49% |
| Native American | 6,949 | 0.45% |
| Native Hawaiian or Pacific Islander | 190 | 0.01% |
Suffolk County's average per capita income is $66,805. Household income levels show a median of $130,686. The poverty rate stands at 6.42%.
Name | Median | Mean |
|---|---|---|
| Married Families | $167,054 | $206,332 |
| Families | $150,525 | $187,724 |
| Households | $130,686 | $166,220 |
| Non Families | $67,008 | $96,061 |
Average Income
Median Household Income
Poverty Rate
