Costco is located at Fullerton Town Square in Fullerton, CA. The mall is situated at S. Harbor Blvd. & E. Orangethorpe Ave., Fullerton, CA 92832. Use the map below to find the exact location and browse other nearby Costco stores.
| Address | S. Harbor Blvd. & E. Orangethorpe Ave., Fullerton, CA 92832 |