In the fantastic area of Costa Mesa you’ll be in good company with around 114,488 residents with around 37% of those homeowners. With an average age of 37, the residents of Costa Mesa 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 90 days roughly 115 homes have been sold with an average sold price of 1,897,684. That is a decrease of $45,893 from the previous period.