Suffolk County's 2026 population is estimated at 790,247, reflecting a -0.21% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Suffolk County is the 4th largest county in Massachusetts. The 2010 population was 725,786 and has grown 8.88% since 2010.
Overall: 33.9 years
Female: 34.2 years
Male: 33.6 years
There are 659,309 adults, (104,159 of whom are seniors) in Suffolk County.
Female: 406,361 (51.8%)
Male: 378,760 (48.2%)
The racial composition of Suffolk County includes 46.16% White, 18.23% Black or African American, 9.26% Asian, 8.32% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 362,430 | 46.16% |
| Black or African American | 143,125 | 18.23% |
| Two or more races | 138,244 | 17.61% |
| Asian | 72,712 | 9.26% |
| Other race | 65,330 | 8.32% |
| Native American | 2,825 | 0.36% |
| Native Hawaiian or Pacific Islander | 455 | 0.06% |
Suffolk County 's average per capita income is $66,348. Household income levels show a median of $95,631. The poverty rate stands at 16.18%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $154,898 | $213,080 |
| Families | $112,072 | $165,027 |
| Households | $95,631 | $139,201 |
| Non Families | $77,857 | $111,308 |
Average Income
Median Household Income
Poverty Rate