With median home prices in the Portland metro area topping $500,000 in the past year or so, it's not surprising that many homes in the region are fetching double that.
Indeed, 2,647 houses in 88 metro-area ZIP codes sold for a million dollars or more during the last four quarters ending in September, according to data provided by the Regional Multiple Listing Service (RMLS). Still, that's only 6.8% of the 38,450 homes sold over that time.
In Lake Oswego/Rivergrove (97034), though, 61.9% of sales…