High · Regular · Grades 9 to 12
James F. Byrnes High, Duncan, SC
James F. Byrnes High is a public high school in Duncan, part of Spartanburg 05 School District. It enrolled 2,391 students in 2024-25, with 19.3 students per full-time teacher.
Enrollment and teachers
- Students
- 2,391
- Teachers (FTE)
- 124.0
- Students per teacher
- 19.3
- Grades
- 9 to 12
This school's ratio is 5.5 higher than the district figure of 13.8. The South Carolina average across schools is 14.4. Ratios count all teachers, including specialists, so they are lower than typical class sizes.
This school19.3
District13.8
South Carolina14.4
United States15.3
School details
- Address
- 150 East Main Street, Duncan, SC 29334
- Phone
- (864)949-2355
- District
- Spartanburg 05 School District
- County
- Spartanburg County
- Level
- High
- Type
- Regular
- Status
- Open
- Charter
- No
- Locale
- Suburb: Midsize
- NCES school ID
- 450360001022
Related schools
We publish official enrollment and staffing data, not ratings or test scores.
Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.