Grand Slam Sports Cards

Grand Slam Sports Cards is a family-owned sports card and Pokémon shop located in Nampa, Idaho, serving collectors across the Treasure Valley — including Boise, Meridian, Caldwell, and Eagle. As an official Fanatics dealer, we carry the latest releases from Topps, Bowman, Panini, and more. Our inventory includes hobby boxes, sealed wax, raw singles, graded cards, and Pokémon products. We also buy, sell, and trade — whether you have a single grail card or an entire collection, we offer fair market value in cash or store credit.