the first 7-eleven store to open in canada was in calgary, alberta, on june 29, 1969. there are 484 7-eleven stores in canada . winnipeg, manitoba, has the world's largest number of slurpee consumers, with an estimated 1,500,000 slurpees sold since the first 7-eleven opened on march 21, 1970. all 7-eleven locations in canada are corporate operated. like its u.s. counterparts, every july 11 7-eleven stores gives slurpees for free on "7-eleven day".