Amazon wants to double its footprint by building a second headquarters — for 50,000 more workers.

Consider that its current Seattle headquarters has more than 40,000 people at its Seattle headquarters.

Josh Brown, executive director of the Puget Sound Regional Council, said this is a big surprise, but there are cities in the region that could win this: Everett and Tacoma.

Brown said Amazon says it needs a lot of capacity, which those two cities could handle: “Both of those communities are planning for 80,000 or more.”

And, he said, both of them will eventually have light rail.