This study compares community service programs in nine Catholic high schools in Louisville (Kentucky). Information was gathered from a survey and follow-up interviews, and findings are organized into a chart essay. The following findings are included: (1) the schools represent a variety of governance and religious affiliation patterns; (2) all but one are single-sex institutions; (3) school choice is constrained by socioeconomic level and geographic location; (4) minority group students comprise a very small percentage of the student population; (5) community service is typically associated with the religious studies curricula; (6) participation in most of the programs is voluntary, and students are allowed to select placement within the program parameters; (7) programs require about three hours of service per week and students provide their own transportation; (8) most of the programs limit parent participation; (9) most of the programs are designed to interfere with the regular program as little as possible; (10) participation is open to students from all academic levels, but students in the highest levels are least likely to participate; (11) program outcomes and evaluation methods vary across schools; (12) required programs give grades and offer credit; (13) parent and student perceptions affect placements; and (14) teachers complain about programs that require students to miss classes. Six charts are included. A list of 38 references, the survey questionnaire, and lists of questions asked during follow-up interviews are appended. (FMW)