Every one of Ohio's 88 counties has its own Board of Developmental Disabilities, the local agency that determines eligibility, coordinates services, and in many cases directly provides early intervention, service and support administration, and adult day services. Families anywhere in Ohio should start here: search this interactive map or alphabetical list to find their county's board and contact information directly. Differentiator: this is the single most important Ohio-specific entry point in this dataset — it replaces the need to list out a separate entry for each of the 88 county boards individually.