This particular Kmart is located in Ramona, CA. It was sent in by JK.
MG submitted the above image from Kmart in Willowbrook, IL. He notes: "This Kmart has been around for over 40 years and is one of the few that remain in this area. This store also had a grocery store attached to it that later became a party shop, and now is simply used to store supplies. Originally, you had to wait for someone in Layaway to open the door to this restroom."