Ngoc Son Secondary School
Thôn Thanh Sơn, xã Ngọc Sơn, Ngoc Lac District
Cao Thinh Secondary School
Làng Mai, xã Cao Thịnh, Ngoc Lac District
Ngoc Trung Secondary School
Thôn Thọ Phú, xã Ngọc Trung, Ngoc Lac District
Loc Thinh Secondary School
Làng Cọ Dừa, xã Lộc Thịnh, Ngoc Lac District
Ngoc Lien Secondary School
Khu trung tâm, xã Ngọc Liên, Ngoc Lac District
Quang Trung Secondary School
Thôn Quang Lộc, xã Quang Trung, Ngoc Lac District
Cao Ngoc Secondary School
Làng Than, xã Cao Ngọc, Ngoc Lac District