The purposes of this study were (1) to identify the uses of computers in non-public school administration and (2) to determine what factors affect the usage of computers in non-public school administration. An eight per cent (1525 schools) sampling of all nonpublic secondary and elementary in the United States was sent questionnaires. Eight hundred and seventy two (57 per cent) were returned. Some major findings of this study were that 36 per cent of all non-public schools use computers for administrative purposes. Non-public secondary schools use computers significantly more for administration than do non-public elementary schools. Independent schools, those not associated with any religious body, use computers significantly more for administration than do Parochial schools, those affiliated with some religious body. Within the Parochial classification, there is no significant difference in administrative computer usage between Catholic and Other Parochial schools. Schools with an enrollment larger than 500 students use administrative computers more frequently than do smaller schools. Administrators not using administrative computers perceived that the expense of computers and the lack of trained computer personnel were the major reasons they were not using computers. Administrators using computers for administrative functions listed word processing, general accounting, payroll, grading, attendance monitering and budgeting as the most common uses of the computer. Administrators using computers for administrative purposes noticed more time for curriculum development tasks and for supervisory tasks. Additionally, these principals noticed that more office work was done faster with the aid of computers. Seventy-three per cent of the respondents noted that computers are important to administrators for administrative functions.