There has been speculation that the 26 percent decline in Seattle Public School enrollment since 1970 is partially due to increasing enrollment in nonpublic schools. This study attempted to determine whether there has been an increasing trend toward nonpublic school enrollment in Seattle and what reasons parents give for transferring their children from the public schools. An analysis of available data on enrollment trends in Seattle public and nonpublic schools and on transfers from public to nonpublic schools for the years 1970-76 was made. In addition, survey questionnaires were sent to the parents of all Seattle students who transferred to nonpublic schools between July 1975 and April 1977. Findings of the study were inconclusive regarding net out-migration of students to nonpublic schools, but showed that while public school enrollment has dropped, nonpublic school enrollment has increased. Transfer rates were highest from the Garfield and Roosevelt school attendance areas, and the rate of transfers by white students was higher than the percentage of white students in the public schools. About half of the responding parents indicated that dissatisfaction with the Seattle Public Schools was the reason for their child's transfer to a nonpublic school. (JG)