The Cypress, CA Costco gas station at 5401 Katella Ave is documented as an existing location in public listings, but I couldn’t verify a reliable original opening date from the available sources. A current listing still shows it as the Costco gas station at that address, while separate local reporting suggests Cypress is also getting a new Costco and gas station project in 2026, which may be why recent construction closure chatter is showing up.

What I could confirm

  • The Cypress Costco gas station address is 5401 Katella Ave, Cypress, CA 90720.
  • Public directory listings show it as an established station with regular gas hours.
  • A 2025 local report says Costco planned a separate new warehouse and gas station in Cypress, with construction starting in March 2026 and completion targeted for November 2026.

Why the opening date is hard to pin down

  • The sources I found don’t include a clear “opened on” date for the current Cypress gas station.
  • Some newer posts appear to refer to a different planned Cypress Costco project, not the long-running gas station at Katella Ave.
  • So the most accurate answer from the available evidence is that the existing gas station was open well before 2024, but the exact opening date wasn’t verified in the sources I found.

Likely interpretation

If you meant the longstanding Costco gas station at 5401 Katella Ave, it has been open for years, but I can’t confirm the first day it opened from the available public records. If you meant the new Cypress Costco/gas station project , that one was reported as starting construction in March 2026 and finishing around November 2026.

TL;DR

I could verify the Cypress gas station’s location and that it’s an established Costco station, but not the exact opening date. The recent construction news appears to refer to a separate new Cypress Costco project, not necessarily the existing Katella Ave gas station.