The Montana School Accreditation Standards (10.55.603, ARM) require schools to do follow-up studies of graduates and students no longer in attendance, therefore, dropout data is collected from all public and accredited (by the Montana Board of Public Education) nonpublic schools. Each fall, schools report dropout data for grades 7 through 12 by gender and race/ethnicity categories for the previous school year. The following report provides high school dropout data by county, school, and race/ethnicity for all public and accredited nonpublic high schools. The race/ethnicity categories and dropout definitions are consistent with the requirements of the U.S. Department of Education, National Center for Education Statistics (NCES) Common Core of Data (CCD) reporting, and are provided at the end of this report in the appendices, as well as data collection and dropout rate calculation methodology. (Contains 1 table & 2 figures.)