This report is based on a randomly selected and stratified sample of 208 United States Catholic high schools. The sample was stratified by governance (diocesan, parochial/interparochial, and private); five categories of enrollment; and six regions. Data are compared with an earlier study, "The Catholic High School: A National Portrait" and show how Catholic schools vary by gender composition (coed versus single sex); size; governance; principals and teachers by type (priests, sisters, brothers, and lay); average annual compensation for full and part-time teachers by type, and lay teachers by academic degree; teacher-pupil ratio by enrollment and school type; and percentages of Catholic and non-Catholic students by grade level. Additional data pertain to the distribution of student enrollment by family income, criteria for awarding financial aid, school admission standards, operating revenues and expenses, tuition costs, and per pupil expenditure. Models of school type and enrollment provide information based on statistical averages. The appendixes display tables that show median figures, by region and school size, for (1) tuition and fees, (2) tuition and fees as percent of operating income, (3) fundraising as percent of operating income, (4) nontuition income, (5) salaries and benefits, (6) other operating expenses, and (7) per pupil expenditure. The last appendix lists, by region, diocese, and state, the Catholic high schools reflected in the report. Twenty-seven exhibits provide data in tabular form throughout the text. (MLF)