Data / Store locations / Costco / Illinois

Costco locations in Illinois: 24 stores, with addresses and phone numbers

Costco has 24 locations in Illinois, 3.6% of its 658 in the United States, in 21 cities. The most are in Chicago, with 3. Each row links to the brand's own store locator, as read on October 24, 2026.

SpecStream is the live web data engine for teams and agents. It reads brand store locators and keeps every location with its address, phone and opening hours. Ask for the brands you track by state or category, and new openings and closures arrive in your sheet, CRM, Slack or agent as the brands publish them.

• 24Locations
• 21Cities
• 3.6%Share of the brand
• October 24, 2026Run date

Costco locations in Illinois

All 24 locations, ordered by city.

Cities

Also on SpecStream

• Costco locations in the United States
• Store locations in Illinois

Updated November 7, 2026. Read from All the Places. All the Places data is CC0-1.0, a public domain dedication. Each location is read from the brand's own store locator by the All the Places project, which runs about once a week, so a location can have opened or closed since the run date. A brand is keyed on its Wikidata item when the project gives one, else on the project's own name for that brand's locator; two brands are never merged on a name. A repeated address of one brand counts once. Locations named for a private person are left out. Opening hours are shown as the brand lists them. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.