Many more fans per capita than San Diego.
Estimated 1.6 million people.
WikipediaEastern Washington is the region of the U.S. state of Washington located east of the Cascade Range. It contains the city of Spokane (the second largest city in the state), the Tri-Cities, the Columbia River and the Grand Coulee Dam, the Hanford Nuclear Reservation and the fertile farmlands of the...
https://en.m.wikipedia.org/wiki/Eastern_Washington