| Name | Sullivan County |
| State | New York |
| FIPS Code | 36105 |
| County Seat | Monticello |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 80,190 |
| Population Growth Rate(2020-2024) | 1.96% |
| Majority Ethnicity | White 70.68% |
| Public School Majority Ethnicity | White 46% |
| Partisan Voting Index | Republican:+7 |
| Unemployment Rate (May 2026) | 4.8% |
| Sales Tax Rate (2025) | 8% |
| Area Code(s) | 845 / 607 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 70.68% |
| African American | 8.63% |
| Hispanic | 18.15% |
| Asian | 1.98% |
| Native American | 0.55% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 45.91% |
| African American | 9.14% |
| Hispanic | 37.38% |
| Asian | 1.49% |
| Native American | 0.32% |
| Hawaiin/Pacific Islander | 0.05% |