I found a video that points out the shortage of speech therapists in the U.S. It's a little old but as of 2002 there were 94,000 SLPs, but they anticipate a need for 120,000! That could be even greater today!
Marnee Brick, MSc
Speech-Language Pathologist and Director of Speech Therapy
TinyEYE Therapy Services (Speech Therapy Telepractice)