Locations in Illinois

Illinois has 25 mapped locations — 0.2 per 100,000 residents, ranking it #19 of 51 in the US.

#19

national rank (per capita)

mapped locations

0.2

per 100k residents

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<iframe src="https://get-instamaps.com/embed/rankings/costco/illinois" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="Illinois locations map — InstaMaps"></iframe>

Named locations in Illinois include

Costco — Niles, IL · Costco — Champaign, IL · Costco — Chicago, IL · Costco — Glenview, IL · Costco — Oak Brook, IL · Costco — Naperville, IL · Costco — Melrose Park, IL · Costco — Bedford Park, IL · Costco — Orland Park, IL · Costco — Bloomingdale, IL · Costco — Bolingbrook, IL · Costco — Mettawa, IL

Cite this

"Illinois has 25 mapped locations — #19 in the US per capita (InstaMaps analysis of OpenStreetMap data, 2026)." Free to quote with a link to this page. Data: OpenStreetMap; population: US Census 2024 estimates.