Mill Creek High School is a high school in Hoschton, Georgia, United States. It serves the unincorporated area of Hamilton Mill, Gwinnett County, a suburb of Atlanta, as well as Braselton. It also serves unincorporated areas (not city limits) 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 by Frank N. Osborne Middle School and Glenn C. Jones Middle School. Mill Creek has over 100 student clubs.