This report presents data and summarizes findings of a study on patterns of enrollment in the Cleveland, Ohio, public schools between 1967 and 1981. The study focused on whether school desegregation caused or contributed to enrollment decline, on how much white flight was related to school desegregation, and on other possible causes of enrollment decline. Analysis of data from various sources indicated that: (1) school desegregation has not caused the enrollment decline in the Cleveland public schools; (2) the major reason for the decline in enrollment is a decrease in number of school age children, caused by population loss and fewer births; (3) student transfers out of the Cleveland system were not due to desegregation; (4) the changing school racial composition reflects the changing racial composition of the city of Cleveland; (5) Catholic school enrollments may have been stabilized by transfers out of Cleveland public schools; and (6) political and economic factors, rather than school desegregation, caused most of the decline in Cleveland school enrollments. (Author/MJL)