This study investigates the alignment of Postsecondary Education (PSE) programs with Science, Technology, Engineering, and Math (STEM) career demands for people with intellectual and developmental disabilities (IDD) in the United States. Using a mixed methods design to explore what programs are offering STEM opportunities, a national survey was conducted with 56 PSE representatives, revealing 14 programs offering STEM experiences. Follow-up interviews provided insights into STEM pathways in these identified programs, emphasizing access to STEM for students with IDD, instruction on STEM skills and knowledge, support provided in STEM pathways, and the role of bias as a barrier to inclusion. The findings offer directions for future research on integrating STEM instruction and technical training in PSE programs for students with IDD while addressing barriers and supporting people with IDD.