Nonono. Metropolis is in Illinois. Check the maps, it's the only Metropolis in the US.
But, if you're talking about the DC Universe, which includes the show, then Metropolis has almost always, with the except of Smallville and one of the revisions<?>, been on the East Coast, somewhere around Delaware. Or is Gotham in Delaware... We've discussed it before, and had links, which you can find all in
this topic .
In the two exceptions I mentioned, Metropolis has been fairly close to St. Louis, on the west side of the Mississippi. But it has never been on the West Coast.