Costco Pharmacy in Illinois

Costco Pharmacy in Illinois: what to expect

Costco Pharmacy maintains 2 pharmacy locations across Illinois, distributed across 2 distinct cities. The chain's footprint in this state mirrors its national pattern: dense clusters in the largest metropolitan areas, lighter coverage in suburban and rural counties, and occasional 24-hour flagship stores attached to high-traffic shopping centers.

Opening hours at Costco Pharmacy stores in Illinois typically follow the brand's national template — extended weekday hours, slightly shorter Saturday schedules, and noticeably reduced Sunday windows — but specific stores vary based on local demand and labor availability. Stores located inside or attached to a 24-hour grocery operator usually offer the longest pharmacy windows. Standalone stores in residential neighborhoods often close by 9pm or earlier on weekdays.

Prescription transfers and refills

Moving an active prescription between two Costco Pharmacy locations in Illinois is usually instant — the pharmacy systems share records — but transferring from another chain or an independent pharmacy requires a phone call from the receiving pharmacy to the original store. Allow at least an hour during normal business hours, longer at peak times. Refills can typically be scheduled through the chain's app or website, with text or email notifications when the prescription is ready.

Holiday hours

Costco Pharmacy stores in Illinois generally observe the major federal holidays with reduced or zero hours. Thanksgiving and Christmas Day are the most likely full-closure days; New Year's Day, Easter, Memorial Day, Independence Day, and Labor Day usually run a shortened schedule. The store-level pages linked above include holiday notes wherever we have them, but always confirm by phone the day before.