An experimental pregnancy prevention program for junior and senior high school students consisted of classroom lectures, informal discussion groups and individual counseling in the schools and group education, individual counseling and reproductive health care in a nearby clinic. The structure of the program allowed for extensive individual counseling for students who desired it, and the reported costs are thus considered generous. School-based services utilized 40 percent of a total three-year budget of $409,250, and clinic services, 60 percent. The average cost per student served was $122, with the average per female student almost four times that per male and the average per senior high student more than twice that per junior high student. Students who utilized more expensive types of services, such as individual counseling and medical services in the clinic, also used other program offerings more frequently. Services to students who attended only class lectures cost an average of $13.20 to deliver, while students who utilized all services cost the program an average of $546 each.