Mill Creek High School

Mill Creek High School is a high school in Hoschton, Georgia, United States. It serves the unincorporated area (not in any city limits) of Hamilton Mill, Gwinnett County, a suburb of Atlanta, as well as the Gwinnett County portion of Braselton. It also serves unincorporated areas such as zip codes 30548, 30019, 30542, 30517 and 30519. It has 3,997 students, and the most recent attendance counts have named it the largest school in Georgia. It is fed only by Frank N. Osborne Middle School, as Glenn C. Jones Middle School now feeds into Seckinger High School, opened in 2022.

Mill Creek was named for the fourth consecutive year as one of the schools in the top 5% in the country with regard to academics and test results.

In August 2004, Mill Creek opened with 2,500 students. It now enrolls a little under 4,000 students, and 292 staff members. It has 53 trailers around the school to provide enough space for its many students. By 2018 the school, which had 3,724 students that year, had been consistently the largest high school in Georgia by student population.

Mill Creek has over 100 student clubs.