Founded in 1950, the Rehabilitation Institute of Southern California (RIO) originated when a group of concerned parents from Orange came together to form the Orange County Society for Crippled Children and Adults. The organization provided Physical, Occupational, and Speech Therapy services.
Occupying six acres on the corner of Tustin and La Veta in the City of Orange, the organization began in an old farmhouse with a barn on an avocado orchard. Over the years, the facility expanded in order to make room for more programs.
The name of the organization changed in 1973 to the Rehabilitation Institute of Orange. This change was necessary to accommodate RIO’s expanding service programs. For corporate reasons, RIO’s name changed one more time in 1983. The organization was re-named Rehabilitation Institute of Southern California but still recognized the RIO initials.