There are 23 Landfills in Washington, serving a population of 7,169,967 people in an area of 66,439 square miles. There is 1 Landfill per 311,737 people, and 1 Landfill per 2,888 square miles.
The state of Washington is ranked 35th in Landfills per capita, and 33rd in Landfills per square mile.