There is one laundry room on the "Villa" side of the resort and one laundry room on the "Inn" side of the resort.
For the Villas, the laundry room is located on the first floor, right around the corner from the elevators. There are sign directing you to it. There is no charge BUT when we were there 2 weeks ago there were only 3 washers (1 of which was taken out 1/2 way thru the trip to be repaired) and 6 dryers. So, it is luck of the draw getting to one that isn't being used. We found our best luck was in the evening around 8 pm or so - I guess most people are out enjoying the parks. I tried at various times inlcuding mid-day (probably the worst since alot of people come back for a break and some pool time), and early in the morning - which was also pretty busy.