How Common is Borderline Personality Disorder? Dec 16, 2015 8:42:56 GMT Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Mea on Dec 16, 2015 8:42:56 GMT According to the National Institute of Mental Health, approximately 1.6% of the adult population of the US has BPD. For context, they list adult prevalence of social anxiety as 6.8%, major depression as 6.7%, generalized anxiety as 3.1% and schizophrenia as 1.1%. Personality disorders in general are present in 9.1% of the adult population of the US.These numbers suggest that in a group of 100 people, you could expect one or two of them to have BPD. That’s similar to the number of people in the world with red hair.- Exo