The South Dakota Association of the Deaf, Inc., (SDAD) is a statewide nonprofit organization serving the deaf and hard of hearing South Dakota citizens and their families. Established in 1900, SDAD has advocated for the rights of deaf and hard of hearing persons so that they can more fully participate in all aspects of society and life – without barriers. SDAD is committed to opening the doors of opportunity to deaf and hard of hearing people living in South Dakota. SDAD also promotes activities where deaf and hearing people can come together to learn about, understand, and value each other.
SDAD is a state association affiliated with the National Association of the Deaf.