Findings of a national survey of Catholic schools' finances are presented in this report. Included are extensive data based on the 1988-89 school year on financing the schools (tuition, parish subsidy, endowments and fund raising); expenses (pre-pupil cost, principals, teachers, religious, other personnel, staff benefits, instructional materials); and special issues (pre-kindergarten, kindergarten, and extended day programs). Questionnaires mailed to 1,200 Catholic elementary schools yielded 907 usable returns, a response rate of approximately 76%. The 907 schools represented slightly over 12 percent of all Catholic elementary schools in the United States. Thirteen tables are included in the text. The appendices contain the questionnaire, correspondence, a list of participating schools, and six statistical tables. The first two tables give data on: (1) percent of schools by size according to location (inner city, urban, suburban, rural) and geographic region; and (2) percent of higher tuition for non-Catholic students by location, region, and school size. The remaining tables use the same groupings (location, region, size) to present data on the following: (3) percent of schools with endowment programs; (4) per-pupil cost, tutition, cost of materials and percent of tuition covering per-pupil cost; (5) salaries of teachers; and (6) percent of schools with pre-kindergarten, kindergarten, and extended day programs and cost to parents. (11 references) (LMI)