Five Keys Charter School (FKCS) is the first charter high school in the nation serving adult offenders in a county jail and post-release site. Open since 2003 and operating year round, the school has served thousands of students who have been failed by traditional education systems. FKCS offers traditionally underserved students the opportunity to restart their education, earn a high school diploma and pursue goals of post-secondary education, employment and positive re-entry into the community.

The five keys in the school's name refer to five essential elements for success among our student population: education, employment, family, recovery and community. The school incorporates block scheduling, which accelerates learning and skill-building into thirty-day blocks equivalent to one semester of school. The San Francisco Sheriff's Department's proven violence prevention and relapse prevention programs are integrated into the California Department of Education's required curriculum. FKCS operates within the San Francisco Unified School District.