James F. Byrnes High

Duncan, South Carolina

2,217 students

High School, Grades 9–12

#21

Best ACT in South Carolina High Schools

2,217

Students

18.9:1

S:T Ratio

School Snapshot
Key metrics at a glance
Avg SAT Score

1,100

B+

out of 1600
Good
Avg ACT Score

22

B

out of 36
Average
AP Courses

15

A

courses offered
Excellent
AP Enrollment

7%

C

of students
Below Avg
Student-Teacher Ratio

19:1

B-

students per teacher
Average
Academic Grades

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School Details
Address

150 East Main Street, Duncan, SC 29334

Phone

(864)949-2355

Website

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District

Spartanburg 05

Academic Calendar
2025-2026

Important dates, holidays, and school events

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