Costco · Merrillville, IN

Costco Merrillville

1310 EAST 79TH AVENUE

Merrillville, IN 46410

Address

1310 East 79th Avenue, Merrillville, IN 46410

Phone

+1 219-641-6400

Opening hours

Hours may differ on public holidays.

Website

costco.com/warehouse-locations/merrillville-in-370.html

Coordinates

41.475791, -87.321217

This listing is based on OpenStreetMap data (updated 2026-10-06). Something wrong? Fix it on OpenStreetMap or let us know.

Frequently asked questions

Where is Costco Merrillville?

Costco Merrillville is located at 1310 East 79th Avenue, Merrillville, IN 46410. Use “Get directions” to start a route from where you are.

What is the phone number of Costco Merrillville?

The listed phone number is +1 219-641-6400.

What are the opening hours of Costco Merrillville?

Recorded opening hours: Monday – Friday 10 AM–8:30 PM; Saturday 9:30 AM–7 PM; Sunday 10 AM–6 PM. Hours may differ on holidays.