Undergraduate and graduate student costs for fall 1984 at public colleges are reported, including institutional comparative data. The information is based on charges at 364 publicly-supported institutions that are members of the American Association of State Colleges and Universities (AASCU). In the fall 1984, total undergraduate resident charges at AASCU increased at a rate of 6 percent, 2 percentage points below the previous year's increase. The costs of higher education have been increasing at a higher rate than the typical consumer costs for goods and services. The lowest average charges for undergraduate residents and nonresidents continued in the southwest United States, and Guam, Puerto Rico, and the Virgin Islands. Information is presented on: a 2-year comparison of average undergraduate charges for state resident and nonresidents students; average graduate resident and nonresident charges for 2 years; the distribution of increases among the states for undergraduate resident and nonresident tuition and fees; state undergraduate and graduate average charges organized by regions; and 1983 and 1984 undergraduate and graduate charges for tuition and fees by school for resident and nonresident students, and combined room and board charges. (SW)