S.M.
Hi M.,
We have school districts here in Houston.
It depends on what kind of special needs your daughter has. If she needs speech therapy etc. they do provide it in a setting called 'PPCD' i.e Preschool Program for Children with Disabilities. PPCD goes up until they are eligible for Kindergarden @ either age 5 or 6. It also accomodates kids with all types of issues, such as Autism, Downs, Cerebral Palsy etc.
Once she goes into Kindergarden, if she still requires services they are provided, but to be honest with you TX is not a good State for Sp. Needs kids. Fort Bend ISD is considered one of the better school districts for kids with issues, specifically around the Katy area. Overall education-wise, the Cy-Fair school districts is also one of the best.
Hope this helps somewhat. :)
S.