All over the place... Don't think I've been there...
On topic:
Seattle and its surrounding metropolis has and has had a pretty awesome metal scene!
Some bands of mention past and present/known and unknown: Metal Church, Sanctuary, Nevermore, Requim, Panic, Mistrust, Mace, Forced Entry, Mind Over Madder, Mad Hatter, Ignitor (not the new lame version you see when you Google, I mean the AWESOME, way indie Overkill sounding band!), Villan, Totalisti, Triple Point, Lyranthe, Condemned, Low End, Faustus, Agony Of Deceipt, Aggression Core, Culprit Reef, Cyperus, The Lust Puppies, Mister Grinch, Pain Feel, Re-Activate, Sicks Deep, Unkind, Damnaged, SubVert, MTF...
Thought should get you started!