In the fantastic area of Washington DC you’ll be in good company with around 702,405 residents with around 42% of those homeowners. With an average age of 35, Washington DC has a fairly young population filled with young professionals, new parents, and new homeowners. Over the past 90 days roughly 658 homes have been sold with an average sold price of $877,273. That is a decrease of $163,615 from the previous period.