What is a developmental disability? Approximately two of every 100 Americans have a developmental disability. The federal government and state of Ohio define a developmental disability as a severe, chronic disability of a person that: Ohio bases eligibility for service on a person's degree of limitation in various areas of life activity. Based on the 2000 census showing Ohio's population to be 11,353,140 and using the national prevalence rate of 1.8%*, an estimated 204,357 people with developmental disabilities live in Ohio. * Estimated by Golay & Associates and suggested by the Federal Administration on Developmental Disabilities as the rate to use to extrapolate state level prevalence rates. | Home | About Us | Calendar of Events | Grants and NOFAs | Links | Publications and Products | Site Map | What's New | |