5. Bret Harte Union High School District
Bret Harte Union High School District, in the state’s Gold Country in Calaveras County, is named after the American poet. The district makes the list due to a strong graduation rate of 94.7% and a class size of 16 students. The Bret Harte High School is the major school in this district, which although small, provides an array of athletic programs, including football, golf and swimming.