Posted on February 18, 2019 February 18, 2019 by WebsiteYellowPages.com Onalaska Grade School 1 2 3 4 50.000 LocationsWashington Bookmark Contact Information Business Name Onalaska Grade School Address 280 W 5th St, Washington 98570-9686 Phone Number 3609785040 Fax Number 3609784115 Website http://www.onysd.wednet.edu Post navigationPrevious post: LINXS COMMUNICATIONSNext post: Gross”s Nursery-Florist