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 348 homes have been sold with an average sold price of 905,814. That is a decrease of $131,623 from the previous period.