| Name | Sullivan County |
| State | New Hampshire |
| FIPS Code | 33019 |
| County Seat | Newport |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 44,006 |
| Population Growth Rate(2020-2024) | 2.16% |
| Majority Ethnicity | White 96.41% |
| Public School Majority Ethnicity | White 91% |
| Partisan Voting Index | Republican:+0 |
| Unemployment Rate (May 2026) | 2.7% |
| Sales Tax Rate (2025) | 0% |
| Area Code(s) | 603 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 96.41% |
| African American | 0.89% |
| Hispanic | 2.09% |
| Asian | 0.57% |
| Native American | 0.02% |
| Hawaiin/Pacific Islander | 0.02% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 91.19% |
| African American | 0.6% |
| Hispanic | 2.8% |
| Asian | 1.08% |
| Native American | 0.14% |
| Hawaiin/Pacific Islander | 0.07% |