Analyses of enrollment figures at Diablo Valley College (DVC), in California, indicate that the number of students under 20 years of age attending has been declining. DVC's enrollments are dependent on what happens in the college's feeder areas, since the number of recent high school graduates directly affects enrollment at the college. While the State Department of Finance predicts that the number of high school graduates in DVC's county has reached bottom and begun to increase, the number of graduates from DVC's feeder schools does not show that trend. The data indicate that in fall 1993 a smaller number of most graduating classes enrolled in courses at DVC than had been the case in the last three years. Enrollment statistics indicate that 23% of the fall 1993 graduates from the Acalanes multiple high school district enrolled, compared to 30% in 1992; 38% of the Mt. Diablo district graduates enrolled, compared to 50% in 1992; and 28% of the San Ramon district graduates enrolled, compared to 32% in 1992. Percentages were also down from the single high school districts of Alhambra (36% versus 60% in 1992), Carondelet (17% versus 31% in 1992), and De LaSalle (30% versus 37% in 1992). The college must determine if the decline is the result of recent state-mandated fee increases, and determine appropriate responses. Charts and tables are included. (KP)