Costco to Open New Vallejo Location November 6
The retailer is bringing a new store and 16-pump gas station to Admiral Callaghan.
Updated on Oct. 28, 2026 in Openings & Closings

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Costco is scheduled to open its new facility in Vallejo on November 6, 2026. Construction of the building is nearing completion as the site prepares for its launch.
Why it matters
The opening brings a new retail option and fuel services to residents in the local area. The addition of the warehouse and fuel center marks the expansion of the chain within the city.
The new site features a 16-pump gas station to support local drivers. Construction progress continues on the facility located on Admiral Callaghan.
The players
Costco
Costco is a global warehouse club chain known for selling bulk goods to members through a subscription-based business model.
The details
Workers were seen moving carts to the front of the building and installing security cameras at the fuel station on October 27, 2026. These final preparations confirm the store is nearing the end of its construction phase.
Timeline
Workers moved carts and installed cameras at the gas station on October 27, 2026.
The new Costco location is scheduled to open on November 6, 2026.
Market Landscape
This development aligns with the City of Vallejo's General Plan land use designations for major retail expansion. It positions the retailer to capture increased market share by leveraging a strategic location on a primary commercial arterial road.
Local shoppers will gain access to a new warehouse store and fuel station starting in early November. Residents can expect the addition of the 16-pump gas station to provide a new regional option for refueling.
The takeaway
The addition of this facility provides residents with expanded retail and fuel access on Admiral Callaghan. Customers should prepare for increased traffic in the area surrounding the new store as operations begin.
What happens next
The new Costco is set to host its grand opening on November 6, 2026.
Further reading
For more updates on local retail shifts, see Openings & Closings.
Source note: This article includes information reported by East Bay Times.
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Do you believe the opening of this large retail store will benefit the Vallejo community?










