There are 42 Mini Golf Courses in Washington, serving a population of 7,169,967 people in an area of 66,439 square miles. There is 1 Mini Golf Course per 170,713 people, and 1 Mini Golf Course per 1,581 square miles.
The state of Washington is ranked 36th in Mini Golf Courses per capita, and 26th in Mini Golf Courses per square mile.