After living in Oregon for 8 years, I'm not surprised to see that many people not originally from there. I always seemed to meet people from everywhere except Oregon. When people would ask where someone was from originally, if the person actually said "Oregon" there would alwasy be a look of amazement from the person who asked, like "Wow, you are actually from here!"
Case in point, I worked at a small office composed of approx 20 people. The General Manager was from Iowa, the Operations Manager was from Minnesota, my boss was from Wisconsin, and I (of course) was from Ohio.
The running joke that the GM would like to say was that if the early settlers had colonized the west originally, would they ever have headed east?