| Costco Bedford Park Bus Ctr | Bedford Park(708) 552-9010 | (708) 552-9010 |
| Costco Bloomingdale | Bloomingdale(630) 351-3010 | (630) 351-3010 |
| Costco BOLINGBROOK | Bolingbrook(630) 410-0702 | (630) 410-0702 |
| Costco Chicago South Loop | Chicago(312) 492-3600 | (312) 492-3600 |
| Costco LINCOLN PARK | Chicago(773) 360-2053 | (773) 360-2053 |
| Costco East Peoria | East Peoria(309) 427-2930 | (309) 427-2930 |
| Costco Glenview | Glenview(847) 730-1003 | (847) 730-1003 |
| Costco LAKE IN THE HILLS | Lake In The Hills(847) 960-9910 | (847) 960-9910 |
| Costco LAKE ZURICH | Lake Zurich(847) 540-3050 | (847) 540-3050 |
| Costco MELROSE PARK | Melrose Park(708) 397-2905 | (708) 397-2905 |
| Costco Mettawa | Mettawa(847) 235-1300 | (847) 235-1300 |
| Costco MT PROSPECT | Mount Prospect(847) 660-2001 | (847) 660-2001 |
| Costco Naperville | Naperville(630) 328-2900 | (630) 328-2900 |
| Costco NILES | Niles(847) 972-3003 | (847) 972-3003 |
| Costco North Riverside | North Riverside(708) 853-1017 | (708) 853-1017 |
| Costco OAK BROOK | Oak Brook(630) 928-0235 | (630) 928-0235 |
| Costco Orland Park | Orland Park(708) 645-5336 | (708) 645-5336 |
| Costco ST CHARLES | Saint Charles(630) 549-2024 | (630) 549-2024 |
| Costco SCHAUMBURG | Schaumburg(847) 969-0790 | (847) 969-0790 |
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