 Rosati-Kain is the most geographically diverse girls high school in the St. Louis metropolitan area, with students coming from throughout the metropolitan St. Louis area, including St. Louis City and St. Louis County, Jefferson County, St. Charles County and Illinois (64 zip codes and 118 elementary schools).Admission is based on standardized test scores and grade school records.To be accepted into Rosati-Kain, an applicant should meet the following criteria