In the fantastic area of Duncan you’ll be in good company with around 19,802 residents with around 75% of those homeowners. With an average age of 38, the residents of Duncan are well established, made up of families of all age groups. Though fairly kicked back throughout the week, during weekends and holidays, you can see a lot more activity and excitement. Over the past 30 days roughly 42 homes have been sold with an average sold price of 360,848. That is a decrease of $2,124 from the previous period.