Costco - Thornton in Thornton, Colorado (Warehouse Club) - Location & Hours

Store Details

16375 N Washington St
Thornton, Colorado 80023

Phone: (303) 474-3255

Map & Directions   Website

Regular Store Hours

M-F 10:00am - 8:30pm
Sat. 9:30am - 6:00pm
Sun. 10:00am - 6:00pm

Store hours may vary due to seasonality.

Nearby Costco Locations

About Costco

Costco is an membership-only warehouse club that provides a wide selection of merchandise, from electronics and clothing to fresh produce and auto care, plus specialty departments and member services including optical, pharmacy, photo center, travel, tire center, and gas station. It is the second largest retailer in the US and the third largest in the world. Costco focuses on selling bulk-packaged brand name products at low prices. It carries its own brand Kirkland Signature. American Express is the only accepted credit card in the US and other countries, except in Canada where American Express has been replaced by CapitalOne MasterCard. Costco has a favorable return policy that most items can be returned with a full refund. Today, Costco has 672 warehouses worldwide including 463 locations in the US.

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Boscov's Department Stores

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Store Services/Products

  • Auto Buying Program
  • Bakery
  • Executive Membership
  • Food Court
  • Fresh Deli
  • Fresh Meat
  • Fresh Produce
  • Gas Station
  • Hearing Aids
  • Independent Optometrist
  • Inkjet Cartridge Refill
  • Membership
  • Optical Department
  • Photo Center
  • Rotisserie Chicken
  • Tire Service Center

Store Departments

Membership   (303) 474-3255

Pharmacy   (303) 474-3254

Pharmacy hours:
M-F 10:00am-7:00pm
Sat. 9:30am-6:00pm
Sun. CLOSED