Hillsboro is pretty much a company town (well, there are some datacenters now, but those don't need a lot of employees). Actually the whole of Washington County is heavily dependent on Intel. There's also Nike, but it's also heading for significantly lower headcount than it's had in a while. So it's kind of a double-whammy here (Triple if you count federal government funding cuts hitting places like OHSU (Oregon Health Sciences University)).
I was contracting out at Intel Jones Farm campus in Hillsboro in 2004 and I'd walk around the (then) new neighborhood there by the campus and I distinctly recall thinking "What if something were to happen to Intel in, say 25 or 30 years? What would happen to these neighborhoods?" It was just kind of a thought experiment at the time, but now it seems like we're going to find out.