Other areas include Meath, Dublin, Cork, Wicklow, Waterford, Wexford, Limerick and Kerry.
5,078 children have been waiting longer than the law allows for a special needs assessment.
They're supposed to be completed within six months, and allow a child to be diagnosed with a disability and get the care they need.
Areas with long waiting lists include Laois/Offaly, Meath, Dublin, Cork, Wicklow, Waterford, Wexford, Limerick and Kerry.
Children's Ombudsman, Niall Muldoon, who has just been reappointed, says it's completely unacceptable: