The last Sears store in Washington is closing its doors on Sunday, December 15th. It ‘s the end of an era. The former retail giant’s location at Westfield Southcenter in Tukwila is one of the very last remaining in the country. The store is closing this Sunday, December 15th. There are fewer than 10 Sears stores in the U.S. and Puerto Rico. Sears merged with Kmart in 2005. Kmart closed it’s last store in the U.S. in October.