Welcome to the fantastic area of Arlington Heights! As of the latest US census, around 19,121 call this area home and around 20% are homeowners. With an average age of 39, the residents of Arlington Heights are well established, with many growing families of all ages. However, during weekends and holidays, you can see a lot more activity and excitement. Over the past 30 days roughly 2 homes have been sold with an average sold price of $1,137,000. That is an increase of $182,000 from the previous period.