Southern Illinois University Carbondale (SIU) is a public research university based in Carbondale, Illinois. SIU Carbondale is the flagship campus of the Southern Illinois University system and a comprehensive public research university with programs in aviation, engineering, agriculture, business, health, education, law, sciences, arts, media, humanities, and public service. The institution traces its development to 1869, and its present academic identity reflects a long pattern of growth rather than a single modern expansion. Founded in 1869 as Southern Illinois Normal University, SIU began as the state’s second teachers college and enrolled its first class in the 1870s. It grew from a regional teacher-training school into a comprehensive university with graduate education, professional schools, research, and statewide public-service responsibilities. Academically, SIU supports a broad mix of undergraduate, graduate, doctoral, certificate, and interdisciplinary study. Representative undergraduate choices include Aviation Flight BS, Aviation Technologies BS, Civil Engineering BS, Electrical Engineering BS, Mechanical Engineering BS, Forestry BS. Graduate study includes options such as Business Administration MBA, Civil Engineering MS, Electrical and Computer Engineering MS, Forestry MS, Computer Science MS, while doctoral education extends into fields including Engineering Science PhD, Forestry PhD, Environmental Resources and Policy PhD, Psychology PhD. Research spans agriculture, forestry, ecology, materials, energy, engineering, aviation, health, psychology, education, communication, media, archaeology, environmental science, and rural or regional issues. Southern Illinois provides extensive field environments for natural-resource and ecological work. Carbondale offers a traditional residential-campus environment near the Shawnee National Forest, state parks, lakes, wildlife refuges, and transportation corridors. Students can combine academic work with research, flight training, field study, internships, arts, athletics, and community engagement. For current cost planning, For students entering in fall 2026, SIU estimates annual undergraduate tuition of $9,833 and mandatory fees of $3,951, for about $13,784 before housing, food, books, transportation, insurance, and other expenses. These published amounts are planning figures and can change with residency, program, credit load, housing, insurance, or board action at Southern Illinois University Carbondale, where representative academic pathways at the university include Aviation Flight BS and Aviation Technologies BS. Undergraduate applicants follow SIU’s first-year or transfer process and submit required academic records. Aviation, nursing, engineering, law, medicine, and other professional programs may use additional requirements, while graduate admission is program specific. Career preparation spans aviation, agriculture, natural resources, engineering, healthcare, education, business, law, media, government, research, construction, and public service. Taken together, Southern Illinois University Carbondale is best understood as an institution whose academic portfolio, research mission, student support, and regional setting are closely connected. SIU also uses certificates, accelerated pathways, online options, and other nontraditional formats to extend selected academic areas beyond the standard four-year or graduate sequence. The university’s location in Carbondale gives students access to the civic, research, cultural, health, business, and public-sector networks that shape its surrounding region. Students comparing programs should review the live catalog because degree titles, concentrations, delivery formats, prerequisites, and admission cycles can differ by college at Southern Illinois University Carbondale, where representative academic pathways at the university include Aviation Flight BS and Aviation Technologies BS.