| Name | Suffolk County |
| State | Massachusetts |
| FIPS Code | 25025 |
| County Seat | Boston |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 781,678 |
| Population Growth Rate(2020-2024) | -2.46% |
| Majority Ethnicity | White 48.39% |
| Public School Majority Ethnicity | Hispanic 48% |
| Partisan Voting Index | Strongly Democratic:+28 |
| Unemployment Rate (May 2026) | 4.7% |
| Sales Tax Rate (2025) | 6.25% |
| Area Code(s) | 617 / 857 / 339 / 781 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 48.39% |
| African American | 19.19% |
| Hispanic | 22.91% |
| Asian | 9.06% |
| Native American | 0.38% |
| Hawaiin/Pacific Islander | 0.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 15.5% |
| African American | 26.98% |
| Hispanic | 48.3% |
| Asian | 5.95% |
| Native American | 0.27% |
| Hawaiin/Pacific Islander | 0.13% |