Costco sales up 3% to $9 billion for April ISSAQUAH, Wash. - Costco on Wednesday reported net sales of $9 billion for the month of April, the four weeks ended May 1, 2016, an increase of 3% as compared to the similar period last year. Costco’s U.S. comps see slight increase in Q1 Vitamin sales drop online, rebound at brick-and-mortar retailers 17th Annual DSN Industry Issues Summit again delivers premium insights Costco reports November, Q1 sales numbers Costco’s October sales steady in U.S., down in Canada over 2014 Costco reports September sales results Costco looks toward expansion as holidays near VoicePort’s PharmaPhonetics service launches in Candian Costco pharmacies Costco reports Q4, FY2015 sales First Previous 10 11 12 13 14 Next Last X This ad will auto-close in 10 seconds