I used to live in the Seattle area and now I just visit from time to time, spending most of my time with family. But when I was there for extended periods of time, I joined the meetups for Seattle Atheists and there were walks around Green Lake, Atheist game nights (Cards against Humanity type things) dinners and various other things. Really nice folks there!

I live in Tacoma. Single, man, person....

Suggest you look for a group on meetup.com

I don't, but it's a city I'd like to one day visit. If I do, I'll let you know and we can meet for coffee and a chat