In the friendly area of Washington DC you’ll be in good company with around 677,221 residents with around 41% of those homeowners. With an average age of 34, Washington DC has a fairly young population filled with young professionals, new parents, and new homeowners. Over the past 30 days roughly 367 homes have been sold with an average sold price of $803,917. That is a decrease of $51,338 from the previous period.