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| South Gwinnett High School | |
|---|---|
| Address | |
 | |
2288 East Main Street , 30078 | |
| Coordinates | 33°51′14″N 84°00′27″W / 33.853972°N 84.00755°W |
| Information | |
| Type | Public |
| Established | 1957 |
| School district | Gwinnett County Public Schools |
| Principal | Rodney D. Jordan |
| Staff | 148.40 (FTE)[1] |
| Grades | 9–12 |
| Enrollment | 2,677 (2022–23)[1] |
| Student to teacher ratio | 18.04[1] |
| Campus | Suburban[1] |
| Color(s) | Navy and gray |
| Mascot | Comet |
| Accreditation | SACS |
| Information | 770-972-4840 |
| Region | 4 in Class AAAAAAA (GHSA) |
| Website | South Gwinnett High School |
South Gwinnett High School (SGHS) is a public high school for students in grades 9–12. The school is located in Snellville, Georgia, United States. It is part of the Gwinnett County Public Schools system, one of the 15 largest public school systems in the country. South Gwinnett is home to about 2,800 students. The school pulls from much of Southeastern Gwinnett county, including areas of Snellville and rural residential areas of Loganville.
The oldest of the four high schools in southeastern Gwinnett County, Snellville Consolidated High School was formed by the 1957 merger of Snellville High School (founded in 1923) and Grayson High School. As Gwinnett County saw extremely rapid population growth in the 1980s, Shiloh High School and Brookwood High School were opened to accommodate the rapid growth in South Gwinnett's school district. As Gwinnett County continued to see more students enter its system, South Gwinnett's district was split in half in 2000, when Grayson High School was "re-opened" at a new facility in Loganville.