According to child count data collected by the Indiana Department of Education and the Department of Special Education, a recent report estimates the incidence rate for children with ASD at 1 in 72.

Pratt, C. (2017). Incidence of autism spectrum disorders in Indiana. The Reporter, 21 (15). Retrieved from https://www.iidc.indiana.edu/pages/incidence-of-autism-spectrum-disorders-in-indiana.