Welcome to the beautiful area of Surprise Valley, Boise! As of the latest US census, around 275 call this area home and around 93% are homeowners. With an average age of 38, the residents of Surprise Valley, Boise 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 recent months roughly 1 homes have been sold with an average sold price of N/A. That is N/A change of N/A from the previous period.