Interesting chart from Guardian UK. US multimillionaires mapped by city and state of residence. Where do the super-rich live?
These are the top 25 cities and top 25 cities. Neither Oregon nor any of its cities are shown. The ranking is based on absolute numbers, not by other criteria like population. But by selecting a state from the map the number per 100,000 is provided.
Oregon has 488 millionaires - 12.6 per 100,000; Washington has 572 millionaires - 15.6 per 100, 000.