Okanogan Public Schools--virginia Grainger School 1118 5th Ave S Okanogan, WA 98840 Phone : (509) 422-3580 Business Category Schools Schools & Educational Services Misc. Administration Of Educational Programs Schools-Elementary Schools-Public Okanogan Public Schools--special Education Director, Greg Schwichtenberg Okanogan, WA 98840 Phone : (509) 422-3580 Business Category Schools Schools & Educational Services Misc. Administration Of Educational Programs