According to new data, Boise is probably now the third largest city in the U.S. Northwest. With an estimated 208,000 residents, it is larger than either Spokane or Tacoma, its two principal rivals. On average, Boise has added more than 5,900 people each year over the last decade.
Seattle and Portland, of course, are still much bigger—each is easily more than twice the size of Boise. For comparison, Seattle has been adding about 4,100 new people a year, while Portland has been adding nearly 7,800.