Okanagan Similkameen None ｜ BC Board Information Address 6161 Okanagan St Oliver, BC V0H1T0 Phone 250 498-3481 Website http://www.sd53.bc.ca Schools in Okanagan Similkameen 13 schools. Cawston Primary School Cawston | Grades Elementary Okanagan Falls Elementary Okanagan Falls | Grades Elementary Oliver Elementary Oliver | Grades Elementary Osoyoos Elementary Osoyoos | Grades Elementary Osoyoos Secondary Osoyoos | Grades Secondary Senpaq'cin School Oliver | Grades Elementary Similkameen Elem-Secondary Keremeos | Grades Elementary-Secondary Similkameen Secondary Alt Keremeos | Grades Secondary Southern Okanagan Alt Oliver | Grades Secondary Southern Okanagan Secondary Oliver | Grades Secondary Tuc-el-Nuit Elementary Oliver | Grades Elementary YouLearn - OL Oliver | Grades Elementary-Secondary YouLearn.ca-CE Oliver | Grades Senior Secondary