The cost of doing one load of laundry may vary location wise in the United States. However, the average cost ranges within $0.20-$0.30 per load which is the combined cost of washing and drying the clothes. Usually the extra large washers cost less per load in comparison with the single, double or triple sized washers. Therefore, they are cost effective choices. At present, there are as many as 35,000 coin laundries available in the United States that are generating $5 billion in gross revenue on an annual basis.