Another WA resident here. You have some west coast schools that should be reasonable safety schools, and some will be very affordable due to the Western Undergraduate Exchange (WUE).
I’d take a peek at Utah, Oregon State, Arizona State, and Cal Poly along with the other UC schools with good engineering progams.
Honestly I don’t see the point in going way across the country for a safety school when you have some good west coast options in more pleasant places to live that will be closer to home. If you get into a place like MIT then obviously, you go. But I wouldn’t hop on a plane to go someplace in say rural PA if you have an equally good option closer to home like say Utah in Salt Lake City, or one of the CA schools like Cal Poly or UC-Irvine that will be in more vibrant and diverse cities.