This directory of educational data processing installations within the Central Midwestern Regional Educational Laboratory region was compiled from the results of a 1967 survey. Since only 452 of 1,069 survey questionnaires were returned, the directory does not contain a complete listing of all such installations in the area. Sixty-nine institutions in Illinois, Kentucky, Missouri, and Tennessee, indicating they possessed data processing equipment, make up the directory listings. The directory is divided into three sections. The first section shows the educational data processing installations by State and by county; the second shows organizations reported to have done data processing operations for educational institutions; and the third is a telephone directory for data processing installations by State and educational institution. Information listed in the directory for each installation includes address, telephone number, person in charge, data processing equipment on hand, major applications for which the equipment is suited, operations schedule, and availability to other organizations. (TT)