St. Catherines Costco Store in St. Catherines helloSeptember 4, 2018 Categories: CrystalAddress 3 North Service Rd.L2N 7R1 St. Catherines, Ontario, CanadaContact Contact Store Review Store Your Name * Your Email * ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ Your Review * Find on Map