According to the Luxury Real Estate Report 2015 published by Sotheby’s and Wealth-X,  the average UHNWI property owner in Washington DC is 64. One quarter are involved with think-tanks and not-for-profit organisations. 71% made their own fortunes. They have median net worth of US$83mn. The attractions include a quieter lifestyle than in a large city like New York and a culturally rich international scene. UHNWIs with property in the city are overwhelmingly domestic.  

Source : 31 May 2015/ Sotheby’s Wealth-X/ Washington DC/ RES