This report presents data from 25 school districts in Connecticut that were involved in dropout prevention planning programs in grades kindergarten through twelfth for the 1987-88 and 1988-89 school years. Each of these districts addresses the problems of both accounting for the dropout rate, and developing an effective and reliable method for the collection of dropout data. The findings presented in this report include percentages for the following student types: (1) those who progress from grade to grade; (2) those who are retained; (3) those who transfer; and (4) those who drop out. Within the category of dropout, a further breakdown of type of dropout is established. Dropout rates, retention rates, and district continuity rates are reported by grade level within community type (small town, medium-size town, big city), with mean annual rates provided for grades 7-12 and grades 9-12. Statistics for dropout population composition by ethnicity and by gender are also presented. Findings indicate that males and minorities, especially Hispanics, are overrepresented in the dropout population. In addition, the highest incidence of dropping out occurs in different grades depending on the district size and the ethnicity of the student. The implications of these findings are discussed. Five figures and four tables are included. The following items are appended: (1) a list of districts involved in dropout prevention; (2) a student dropout data form; and (3) a table of dropout rates by district size. (JS)