This study utilized a rating scale and random sampling of Connecticut school speech-language pathologists about their preprofessional education and current knowledge of autism spectrum disorders (ASD). The participants had a minimal amount of preprofessional academic or clinical preparation in ASD, and no differences were found in how speech-language pathologists were trained over the past 30 years. School speech-language pathologists reported relatively stronger knowledge of the general behavioral and communication characteristics associated with ASD and less knowledge of educational assessment and intervention formats. Given the prevalence of schoolchildren with ASD, speech-language pathology graduate programs need to enhance their preprofessional curricula to provide school-based speech-language pathologists with specific training to meet the communication needs presented by children with ASD.