Many may not be aware CDF has a parenting section. I believe special needs is a thread within the major category.
Any parent who has a child with a diagnosed illness already has a resource to ask about other areas: your child's medical team as well as current school district. I can tell you the best districts in the State of Idaho for working with various types of disorders, but it's pointless to some degree, IMHO.
Are you moving because your children have the diagnosis they do? If so do you want to be closest in the U.S. to one of the major Think Tanks about Autism Care?
Or, are you moving and wondered what Idaho would have to offer both in jobs and for your special needs kids? That's how I read your question, and if I did so in error, please clarify of what is drawing you specifically to Idaho vs. other states. In today's economy, I think it is very important to have a job waiting when one plans to move. Once a job is secured, then it is realstic to ask in the general area where you will be moving, in which district your children could potentially get the most help.
This may sound harsh and I don't mean it too. I spend the majority of my work time working with medically disabled kids. I've seen too many families move OUT of certain states to others as services for their children seemed easeir to obtain. Of course, they were unaware that perhaps another 100 of so families had made the same decision. And some children/families suffered greatly for decisions made that didn't take into account the needs of everyone, including a steady income.
Enrolling 100 special needs children in one school district is going to change things drastically in that District. Previously, X School District that did well with the Y children in their district; however, suddenly the district has to providee for about 50-100 more students with no additional funding. How can they do it? Additionally, parents who move for better school districts or accessibility to medical care etc. tend to not be employed in occupations for which they trained, are unable to secure steady work or will take a job at a significant salary difference.
I've seen this happen in other states and to a degree within certain school districts in Idaho.
I'd learn first where employment opportunities are. Your current doctors can easily research if certain sub-specialties are available in areas where jobs are available. Then ask people who know what resources are available. Also, as has been stated in various posts, there are different degrees of disabilities.
Some districts may be great working with X, but haven't had more severe students with Y disease.
It's important to make sure you're not trying to escape a life for one that sounds better. Sometimes with disabled children, the grass always seems greener on the other side of the fence. Sometimes it is, but not always. Sometimes in moving from an area one doesn't realize certain supports/helps they had an no longer have.
Hopefully, your husband can find employment in an area that also provides the services you need for your children. Do check the parenting section out here. Also, make a list of what resources/supports you have now. Don't assume they will naturally be elsewhere as they may not be.
I do wish you the best of luck and admire your courage of looking elsewhere for a possible better life for your entire family. I honestly think it will be easier if your husband has a new job and then you can learn about options where you'll be moving. Can your children withstand stress very well? Most disabled people (children and adults) can't. What wil your boys do if dad has no job and is looking for one? What other stressors would you family experience?
I do sincerely mean this when I say good luck. I hope the right work opportunity comes to your family so you can find a better place for every member of your family.