The Tiffin Developmental Center, also known as TDC, offers a variety of services to individuals with severe and profound mental disabilities. The center provides support to more than 180 residents in the areas of daily living, health care and social skills development. It serves the residents of Williams, Fulton, Lucas, Ottawa, Defiance, Henry, Wood, Sandusky, Erie, Paulding, Putnam, Hancock, Seneca, Huron, Van Wert, Allen, Wyandot, Crawford, Mercer, Auglaize, Hardin, Marion and Morrow counties in Ohio. The Tiffin Developmental Center is operated by the Ohio Department of Mental Retardation and Developmental Disabilities, which provides a range of supported living and capital housing services. The Tiffin Developmental Center is located in Tiffin, Ohio.