: Costco sales top $18 billion in March No Comments Uncategorized Costco’s March sales rise 18% to $18.21 billion, also representing an uptick compared with February sales. Costco’s March sales rise 18% to $18.21 billion, also representing an uptick compared with February sales. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)