Americans who do no identify with any organized religion tend to flock to urban areas, with some of the largest shares cropping up in Portland (42%), San Francisco (33%) and Seattle (33%).
In other words, the Pacific Coast in general, and some urban areas especially, remain among the most unchurched. (This state of affairs is not new, as I and others have discussed in various publications. For two examples, see this and this.) You can read at Time the brief summary of the report from the Public Religion Research Institute here: These Are the Least Religious Cities in the U.S. | TIME.