There are 280 Laundromats in Washington, serving a population of 7,169,967 people in an area of 66,439 square miles. There is 1 Laundromat per 25,607 people, and 1 Laundromat per 237 square miles.
The state of Washington is ranked 50th in Laundromats per capita, and 34th in Laundromats per square mile.