Grocery Outlet Holding Corp. has expanded its brick-and-mortar footprint to eight states with the debut of its first location in Maryland. Grocery Outlet opened the doors to a store at 1713 Massey Blvd. in Hagerstown, Maryland on June 16. The new outlet marked the chain’s 424th store, with locations in California, Washington, Oregon, Pennsylvania, Idaho, Nevada, New Jersey and now Maryland. Supermarket News