Costco - Rancho Cucamonga, CA

11800 4th StreetRancho CucamongaCA 91730
Today: 10:00 am - 8:30 pm

Hours Costco - Rancho Cucamonga, CA


Holiday Opening HoursShow

Christmas Day
Christmas Eve
New Year's Eve
New Year's Day

Covid 19

Important information - updated April 2021

It's necessary to respect following measures:

  • Customers and employees are required to wear properly fitting face coverings.
  • Maintain social distancing of 6 feet during shopping trip.
  • Hand sanitizing stations are available for shoppers and employees.
  • Intensified cleanings are conducted throughout all stores, with added focus on high-touch areas and carts.
  • For members who are unable to wear a mask or face covering, Costco has delivery options available on Thank you for your understanding and cooperation.
  • Costco has implemented limits on certain items to help ensure more members are able to purchase merchandise they want and need.
  • Unless prohibited by local mandates, Costco is allowing members to use their own reusable shopping bags as long as they pack the bags themselves.
  • To help limit personal contact and create more space for social distancing, Costco has reduced service in some departments. At some locations, there will be limited or no service at the Hearing Aid department, Costco Optical, the floral department and the jewelry department. Limitations vary by location.
  • A limited menu is available at Costco Food Courts. Orders are only available for takeout & seating is not available.

Some Costco stores could have specific opening hours.

Costco warehouses are currently open for Special Operating Hours from 9 to 10 a.m., Monday through Friday for Members Ages 60 or Older, for those with disabilities or who are immunocompromised.

Costco is temporarily allowing priority access to our warehouses during all open hours for Costco members who are healthcare workers and first responders such as police officers, EMTs and firefighters.

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Costco - Rancho Cucamonga, CA - Hours & Store Details

Costco is set at 11800 4th Street, on the south-east side of Rancho Cucamonga (not far from Ontario Mills). The store serves the people of Mira Loma, Upland, Bloomington, Ontario, Riverside, Fontana and Guasti. Today (Wednesday), business hours start at 10:00 am and continue until 8:30 pm. Here you may find the store hours, street address or customer reviews for Costco Rancho Cucamonga, CA.

Costco is ideally positioned near the intersection of Buffalo Avenue and 4th Street, in Rancho Cucamonga, California.

By car

The store is situated within a 1 minute trip from Ontario Mills Drive, Rochester Avenue, Exit 110 (Ontario Freeway) of I-15 and Mills Circle; a 3 minute drive from Ontario Freeway (I-15), Milliken Avenue and Exit 58A (San Bernardino Freeway) of I-10; or a 10 minute trip from San Bernardino Freeway (I-10) and San Bernardino Avenue.

11800 4th Street, Rancho Cucamonga, CA 91730 is the address for this location when using GPS devices.

By train

Visitors may take the train to Rancho Cucamonga Station (1.26 mi away). Nearby line is: San Bernardino.

On foot

Just a short walk away you may visit TravelCenters of America - Ontario West, Ontario Mills, Southwire Commercial, PolyOne Industrial, TravelCenters of America - Ontario East, SC Fuels, Ontario Gateway Center, Empire Corporate Plaza and Piemonte at Ontario Center.

The total number of Costco warehouses currently operating in Rancho Cucamonga, California is 1.

Refer to this link for a complete directory of Costco locations near Rancho Cucamonga.

Please note: typical store hours for Costco in Rancho Cucamonga, CA may be revised over national holidays. In 2021 it is applicable to Xmas, Boxing Day, Easter Monday or Thanksgiving Day. For verified information about the holiday operating hours for Costco Rancho Cucamonga, CA, visit the official site or call the contact number at 9095811703.


Gas Station, Food Court, Hearing Aids, Optical Department, Pharmacy, Photo Center, Tire Service Center

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