Okanogan County Facilities Management 149 4th Ave N Okanogan, WA 98840 Phone : (509) 422-7107 Business Category Government Offices-County Legislative Bodies Okanogan County Of--maintenance Okanogan, WA 98840 Phone : (509) 422-7107 Business Category Okanogan County--facilities Management, Maintenance Okanogan, WA 98840 Phone : (509) 422-7107 Business Category Government Offices-County Government Offices & Public Schools