Hours Of Operations Costco Pharmacy Illinois Mt Prospect 60056 Costco Pharmacy Hours of Operation and Location in Mt Prospect, IL 60056 4.4 - 45 votes 999 N Elmhurst Rd, #100, Mt Prospect, IL 60056 (847) 660-2028 Get Directions Costco Pharmacy Hours Category: Beauty & Health Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore Mt ProspectView More Apparel TJ MaxxCarter'sCatherinesDress BarnRainbow Sports G & S Sporting GoodsJazzerciseSports Authority Sporting GoodsBasic BasicStrike Zone Pro Shop Jewelry Hobby LobbyCharming CharlieTiffany & Company Recommend For You Jack Alexander Salon & Spa Lovely Nails Louis Anthony Hair Salon Hair 21 Studio Absolute Radiance Wicked Studio Marianne Depaul & Associates Opal Nails Classic Nails Spa Computer Repair By Morotech